reamers and countersinks - guhring.ru1685 hss-e indexable ... 1624 set screws for pilots din 551 122...

172
Pri C eli S t 40 iSS ue 1

Upload: lamthu

Post on 07-Apr-2018

230 views

Category:

Documents


6 download

TRANSCRIPT

neW: Solid carbide HPC Hr 500 for:• extremely high cutting rates• highest process reliability• outstanding economy

reamerS and CounterSinkSProGram 2007

PriCeliSt 40

iSSue 1

2

Guhring Tools Price Guroguide no. page page

Guhring Tools Price Guroguide no. page page

Guhring No. IndexReamers Countersinks

401 HSS-E machine chucking reamers 16 138402 HSS-E machine chucking reamers 16 139403 HSS-E quick spiral reamers 26 139404 HSS-E machine chucking reamers 20 139405 HSS-E machine chucking reamers 20 139406 HSS-E quick spiral reamers 27 139407 HSS-E shell reamers 33 143408 HSS-E shell reamers 33 143409 HSS-E shell reamers 33 143410 HSS-E machine taper pin reamers 67 143411 HSS-E machine taper pin reamers 68 143412 HSS hand reamers 72 –413 HSS hand reamers 72 –414 HSS machine bridge reamers 28 142415 HSS hand reamers, adjustable 74 –416 HSS hand reamers, quickly adjustable 76 –417 HSS replacement blades 76 –419 HSS-E machine bottoming reamers 29 139420 HSS-E machine bottoming reamers 30 139428 HSS hand taper pin reamers 64 –429 HSS hand taper pin reamers 64 –430 HSS-E expanding machine reamers 31 143431 HSS-E stepped machine reamers 32 143440 HSS-E machine chucking reamers 18 139442 HSS-E brights for machine chucking reamers 22 –443 HSS hand taper socket reamers 65 –445 HSS hand taper socket reamers 65 –446 HSS hand socket roughing reamers 65 –455 HSS-E NC machine chucking reamers 12 138457 HSS-E machine chucking reamers 16 138458 HSS-E machine reamer sets 25 –467 HSS-E machine chucking reamers 16 139468 HSS-E machine chucking reamers 18 139469 HSS-E quick spiral reamers 26 139488 HSS-E machine reamers 23 139489 HSS-E machine reamers 23 139490 HSS-E NC machine chucking reamers 14 138496 HSS-E machine chucking reamers 17 139497 HSS-E machine reamers 24 139641 HSS-E machine chucking reamers 18 139642 HSS-E machine chucking reamers 20 139674 Carbide machine reamers 54 141717 Carbide machine chucking reamers 50 141718 Carbide machine chucking reamers 50 141719 Carbide machine chucking reamers 51 141720 Carbide machine chucking reamers 51 141727 Carbide shell reamers 56 141737 Carbide machine reamers 54 141740 Carbide expanding machine chucking reamers 53 141743 Carbide stepped machine chucking reamers 55 141749 Carbide expanding machine chucking reamers 52 141

1407 Carbide machine reamers 54 1411408 Carbide machine chucking reamers 48 1401409 Carbide machine chucking reamers 48 1411410 Carbide machine chucking reamers 49 1411411 Carbide machine chucking reamers 49 1411427 Carbide NC machine chucking reamers 44 1401428 Carbide machine chucking reamers 48 1411429 Carbide machine chucking reamers 48 1411430 Carbide machine reamers 54 1411431 HSS-E machine chucking reamers with IC 18 1391432 HSS-E machine reamers with IC 23 1391433 HSS hand taper reamers 66 –1434 Arbors without key, draw-off nut & driving rings 34 –1435 Draw off nuts 34 –1436 Driving collars 34 –1437 Woodruff keys 34 –1438 Arbors, complete 34 –1449 Carbide NC machine chucking reamers 46 1401685 HR 500 S, Solid carbide HPC reamers 42 1401686 HR 500 D, Solid carbide HPC reamers 43 140

324 HSS counterbores with fixed pilot, fine tolerance 93 146325 HSS counterbores with fixed pilot, medial tolerance 94 147326 HSS counterbores w. fixed pilot, tapping size holes 94 147327 HSS countersinks 90° 85 145328 HSS countersinks 90° 87 145432 HSS-E spot facers, Morse taper shank 1 100 147433 HSS-E spot facers, Morse taper shank 2 101 147434 HSS-E spot facers, Morse taper shank 3 102 147435 HSS-E spot facers, Morse taper shank 4 103 147436 HSS countersinks 90°, fine 90 144437 HSS countersinks 90°, medial 91 144438 HSS countersinks 90°, tapping size holes 92 144463 HSS counterbores with hole for detachable pilot 95 147464 Pilots for Guhring no. 463, fine tolerance 96 –465 Pilots for Guhring no. 463, medial tolerance 97 –466 Pilots for Guhring no. 463, for tapping size holes 98 –470 HSS countersinks 60° 82 145471 HSS countersinks 60° 82 145472 HSS countersinks 60° 83 145473 HSS countersinks 60° 83 145474 HSS countersinks 90° 84 145475 HSS countersinks 90° 84 145476 HSS countersinks 90° 85 145477 HSS countersinks 90° 87 145478 HSS countersinks 120° 88 145479 HSS countersinks 120° 88 145480 HSS countersinks 120° 89 145481 HSS countersinks 120° 89 145482 HSS counterbores with fixed pilot, fine tolerance 93 146483 HSS counterbores with fixed pilot, medial tolerance 94 146484 HSS counterbores w. fixed pilot, tapping size holes 94 147485 HSS counterbores with fixed pilot, fine tolerance 99 147486 HSS counterbores with fixed pilot, medial tolerance 99 147487 HSS counterbores w. fixed pilot, tapping size holes 100 147498 HSS countersink sets 90° 86 –499 HSS countersink sets 90° 86 –

1318 HSS countersinks 90°, fine tolerance 90 1441319 HSS countersinks 90°, medial tolerance 91 1441323 HSS countersinks 90°, tapping size hole 92 1451326 HSS countersinks 90° 85 1451601 HSS counterbores 112 1481602 HSS counterbores 113 1481603 Carbide counterbores 114 1491604 Carbide counterbores 115 1491605 HSS spot facers 120 1501606 Carbide spot facers 121 1511611 Fixing screws for counterbores, insert accessory 119 –1612 Screw driver, insert accessory 119 –1615 Pilots with flat 122 –1616 Pilots, complete, with 2 locknuts 123 –1617 Pilots, complete 124 –1622 HSS short spot facers 90° 116 1511624 Set screws for pilots DIN 551 122 –1625 Standard holder, short, straight shank 126 –1626 Standard holder, short, taper shank 127 –1627 Standard holder, long, straight shank 126 –1628 Standard holder, long, taper shank 128 –1629 Universal holder with extractor bushes 129 –1630 Universal holder with extractor bushes 130 –1638 HSS back spot facers 132 1511640 Carbide back spot facers 133 1511641 Holders for back spot facers 134 –1642 Holders for back spot facers 135 –1648 Safety bolt 125 –1649 Lock nuts 125 –1650 Tool extractors with pilot 131 –1651 Tool extractors without pilot 131 –1654 Counterbore for indexable inserts 117 –1655 Carbide indexable inserts for Guhring no. 1654 118 1491656 Carbide indexable inserts for Guhring no. 1654 118 1491657 HSS-E indexable inserts for Guhring no. 1654 118 1491658 Carbide indexable inserts for Guhring no. 1654 118 149

Reamers and Countersinks

new

new

3

contents

Reamers and Countersinks

HSS-e maCHine CHuCkinG reamerS

Carbide maCHine CHuCkinG reamerS

taPer Pin reamerS

HaNd reamerS

CounterSinkS

SHort SPotfaCerS

GUHRiNGGUidE

teCHniCal SeCtion

GuHrinG number index

Cermet SPeCial reamerS

• Table of contents page 6• Compass/application recommendations page 9• Standard range and technical data page 12

• Table of contents page 36• Compass/application recommendations page 38• Standard range and technical data page 40

• Table of contents page 62• Compass/application recommendations page 63• Standard range and technical data page 64

• Table of contents page 70• Compass/application recommendations page 71• Standard range and technical data page 72

• Table of contents page 78• Compass/application recommendations page 80• Standard range and technical data page 82

• Table of contents page 106• System summary page 110• Standard range and technical data page 112

• Reaming page 142• Countersinking page 148

• Reamers page 159• Short spotfacers: Assembly page 165• PCD special reamers page 167• Questionnaire special reamers page 170

page 2

• Design and application examples page 58

4

Standard range and technical data

Reamers and Countersinks

the Guhring Group

Bernd Schatz, Financial andCommercial Director

Dietmar Pfränger, Production andTechnical Director

Dr. Jörg Gühring, President, Research and Development

Oliver Gühring, Sales andMarketing Director

company structure and management

Guhring is internationally one of

the leading manufacturers of rotary

cutting tools. With the slogan “Guhring

– The Tool Company” the company

is substantiating its claim to be the

complete supplier of drilling, tapping,

milling, reaming and countersinking

tools as well as complex tooling

systems.

The basis of the success is Guhring‘s

100 year know-how in the production

of tools on the one hand and the

strategic location of the company‘s

activities with the aim of being classed

as one of the best in the cutting

industry on the other hand.

The company‘s own carbide production

enables us to produce optimal tool

materials for up-to-date high-tech

tools. In addition, Guhring develops

hard and soft surface coatings

and operates - also for contract

coating - 30 coating centres world-

wide. Furthermore, the Research &

Development department produces

optimal cutting geometries for new

cutting tasks in materials that are

continually becoming more and more

difficult to machine.

Guhring‘s machine tool division

develops and builds special machines

for the production of high-tech tools.

Finally, our service division provides

a re-grinding and a re-coating service

including a complete tool management.

new solid carbide HPc reamers for almost every material

Reaming and countersinking are

processes to optimise pre-machined

holes. As a world-wide leading

manufacturer of drilling tools, Guhring,

therefore, also provides reaming and

countersinking tools – naturally of the

highest Guhring quality.

With the new HPC reamers HR 500 D

and HR 500 S for the highly accurate

finish machining of through or blind

holes respectively, Guhring sets new

standards for reaming operations. They

enable cutting speeds, feed rates and

surface qualities that so far could only

be achieved with considerably more

sensitive cermet reamers – and this in

nearly all materials at comparatively

favourable tool costs!

Headquarters in Albstadt-Ebingen The new plant in Albstadt-Ebingen State-of-the-art production facilities for precision tools

HSS-e machine chucking reamers

• NC machine chucking reamers from page 12

• Machine chucking reamers from page 16

• Machine reamers from page 23

• Machine reamer sets from page 25

• Quick spiral reamers from page 26

• Machine bridge reamers from page 28

• Machine bottoming reamers from page 29

• Expanding machine reamers from page 31

• Stepped machine reamers from page 32

• Shell reamers and arbors from page 33

HS

S-E

mac

hin

ech

uck

ing

rea

mer

s

6

– HSS-E 455 12 138

HSS-E 490 14 138

Din 212 A HSS-E 401 16 138

B HSS-E 402 16 139

A HSS-E 457 16 138

C HSS-E 467 16 139

B/D HSS-E 496 17 139

C HSS-E 440 18 139

HSS-E 1431 18 139

D HSS-E 468 18 139

HSS-E 641 18 139

Din 208 A HSS-E 404 20 139

B HSS-E 405 20 139

HSS-E 642 20 139

HSS-E 442 21 –

Reamers

table of contents

nc machine chucking reamers

Machine chucking reamers

bright nitrided TiN

Standard Form Tool illustration Tool material Surface finish

Ø-range Guhringno.

Std. range page

Guhring-guide page

Guhring std.

Ø in increments of 0.01 mm, with h6 shank for the application in hydraulic and shrinkfit chucks

1.00-12.03

Tolerance zone H7, with h6 shank for the application in hydraulic and shrinkfit chucks

1.50-20.00

1.00-3.50

1.00-3.70

left hand cutting

1.00-6.00

left hand cutting

4.50-10.00

Ø in increments of 0.01 mm

0.95-12.05

4.00-20.00

with axial coolant duct

5.00-20.00

3.80-20.00

4.00-20.00

3.00-50.00

3.00-50.00

8.00-20.00

brights

7.50-34.00

7

Din 8089 A HSS-E 488 23 139

HSS-E 1432 23 139

B HSS-E 489 23 139

HSS-E 497 24 139

Din 8089 B

HSS-E 458 25 –

Din 212 E HSS-E 469 26 139

– HSS-E 403 26 139

Din 208 C HSS-E 406 27 139

Din 311 – HSS 414 28 142

– HSS-E 430 31 143

– HSS-E 419 29 139

HSS-E 420 30 139

Reamers

Machine reamers

Machine reamer sets

quick spiral reamers

Standard Form Tool illustration Tool material Surface finish

Ø-range Guhringno.

Std. range page

Guhring-guide page

4.00-20.00

with axial coolant duct

5.00-20.00

4.00-20.00

Ø in increments of 0.01 mm

3.76-12.00

Ø in increments of 0.01 mm

3.76-12.00

Machine bridge reamers

Machine bottoming reamers

Expanding machine reamers

4.00-20.00

1.00-3.50

3.00-32.00

6.40-40.00

Guhring std. 8.00-32.00

Guhring std. – 2.50-12.00

3.00-32.00

8

– HSS-E 431 32 143

Din 219 A HSS-E 407 33 143

B HSS-E 408 33 143

C HSS-E 409 33 143

Din 217 – – – 1438 34 –

1434 34 –

1437 34 –

1435 34 –

1436 34 –

Reamers

table of contents

Stepped machine reamersStandard Form Tool illustration Tool material Surface

finishØ-range Guhring

no.Std.

range page

Guhring-guide page

Guhring std. 5.00-20.00

Shell reamers

25.00-100.00

25.00-100.00

25.00-100.00

complete

13.00-50.00

without key, draw-off nut and driving ring 13.00-50.00

keys13.00-50.00

draw-off nuts13.00-50.00

driver rings13.00-50.00

Holders and arbors for shell reamers

bright steam tempered

9Reamers

compass

Reaming recommendations for HSS-E machine reamers

Blind hole or through holeStraight-fluted reamers are generally applied in blind holes as they, due to their cutting edge geometry, evacuate the chips from the hole against the direction of the feed. Spiral reamers are preferred for the application in through holes because the spiral evacuates the chips from the hole in direction of the feed.

interrupted holesSpiral reamers are preferred for the application in interrupted holes because the cutting edge geometry, in comparison to straight-fluted tools, possesses a lesser tendency of grabbing on the oblique hole. If the oblique hole is > 0.25 x D, spiral reamers can also be applied in blind holes.

Stock removal allowance of the pre-drilled holeIn the event of the stock removal allowance of the pre-drilled hole exceeding the standard stock removal al-lowance of 0.2 to 0.3 mm for reaming, a quick spiral reamer or a machine bridge reamer should be applied. It is possible to machine a considerably larger stock removal allowance with these tools, however, they should not be applied in blind holes due to the bevel lead length and the spiral angle.

Expanding reamersExpanding reamers can only be expanded. Subsequently, if the resulting measurement is too large it is not possible to turn the screw back as the pre-tension of the tool would be lost. In most cases this leads to tool breakage. If the pre-tension has been taken from the tool, it requires re-adjusting and re-grinding.

Positional accuracy of the holeA machine bottoming reamer often provides the best solution when optimal positional accuracy is required, thanks to its special chamfer lead the ‘wander’ of the tool is minimal. In addition, machine bottoming ream-ers are often applied when the pre-drilled hole and the reamer are not on the same axis (slight misalign-ment.

A first for standard, ex-stock reamers: Reamers with internal cooling

Guhring is the first tool manufacturer to offer HSS-E reamers

with central internal cooling for the machining of blind holes as

standard range tools.

The advantages for your production are:

• improved chip evacuation

• increased tool life thanks to optimal cooling and lubrication

• a considerably better tool price in comparison to the special

tooling solutions required until now

• ex stock, immediate availability

With the inclusion of this type of reamer in the standard range,

Guhring is satisfying the ever increasing demand for tools with

internal cooling, especially for the machine reamers as applied on

automatic lathes.

Detailed informationen regarding both these tools can be found on

page 18 and page 23.

10

HSS-E HSS HSS-E

A B – A B C A B C – – – – – C B – A B C D E A B – B/D B D B C A

401 402 403 404 405 406 407 408 409 414 419 420 430 431 440 442 455 457 458 467 468 469 488 489 490 496 497 641 642 1431 1432

212 212 212 208 208 208 219 219 219 311 212 208 212 8089 212 212 212 8089 8089 212 8089 212 208 212 8089

16 16 26 20 20 27 33 33 33 28 29 30 31 32 18 22 12 16 25 16 18 26 23 23 14 17 24 18 20 18 23

Reamers

Tool material

Form

Surface finish

Guhring no.

DIN G.std.G.std.G.std.G.std. G.std. G.std.

Std. range and technical data page

Surface finish: bright steam tempered nitrided TiN

optimally suited

optimally suited,if sufficient space at bottom of hole

Material Hole type Stock removal allowance

Steel materials, i. e. commonstructural steels, free cutting steels, heat-treatable steels,case hardened steels, tool steels, high speed steels Cast iron, i. e. GG20Spheroidal graph-ite and malleable cast iron, i. e. GGG40/50

Through hole

standard

large (0.5 to 0.6 mm)

positional accuracy required of hol

interrupted holes

Blind hole

standard

positional accuracy required of hole

interrupted holes

Soft non-ferrous met-als, i. e. aluminium, brass etc.

Through hole

standard

large (0.5 to 0.6 mm)

positional accuracy required of hole

interrupted holes

Blind hole

standard

positional accuracy required of hole

interrupted holes

compass

11

HSS-E HSS HSS-E

A B – A B C A B C – – – – – C B – A B C D E A B – B/D B D B C A

401 402 403 404 405 406 407 408 409 414 419 420 430 431 440 442 455 457 458 467 468 469 488 489 490 496 497 641 642 1431 1432

212 212 212 208 208 208 219 219 219 311 212 208 212 8089 212 212 212 8089 8089 212 8089 212 208 212 8089

16 16 26 20 20 27 33 33 33 28 29 30 31 32 18 22 12 16 25 16 18 26 23 23 14 17 24 18 20 18 23

Reamers

Tool material

Form

Surface finish

Guhring no.

DIN G.std.G.std.G.std.G.std. G.std. G.std.

Std. range and technical data page

Surface finish: bright steam tempered nitrided TiN

optimally suited

optimally suited,if sufficient space at bottom of hole

Material Hole type Stock removal allowance

Steel materials, i. e. commonstructural steels, free cutting steels, heat-treatable steels,case hardened steels, tool steels, high speed steels Cast iron, i. e. GG20Spheroidal graph-ite and malleable cast iron, i. e. GGG40/50

Through hole

standard

large (0.5 to 0.6 mm)

positional accuracy required of hol

interrupted holes

Blind hole

standard

positional accuracy required of hole

interrupted holes

Soft non-ferrous met-als, i. e. aluminium, brass etc.

Through hole

standard

large (0.5 to 0.6 mm)

positional accuracy required of hole

interrupted holes

Blind hole

standard

positional accuracy required of hole

interrupted holes

12

HSS-E

11

105

455

d2

l1

d1

l 4

l2

138

Standard range and technical data

Reamers

Standard range and technical data

HSS-E nc machine chucking reamersProduct information

• right hand cutting• left hand spiral flutes• ≤ Ø 3.03 mm with external centres

on both ends ≥ Ø 3.97 mm with internal centreson both ends

NC machine chucking reamers are similar to DIN 212 with straight shank (h6) for standardised tool clamping in hydraulic or shrink fit chucks. The combination of NC machine chucking reamer and hydraulic, high precision clamping or shrink fit chuck respectively offers highest concentricity and process reliability for the production of holes to required tolerances.

Short delivery for intermediate sizes.

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance from Ø 1.00 to 5.03 mm0.000/+0.004from Ø 5.97 to 12.00 mm:0.000/+0.005

bright

Nom.-Ød1

Shank-Ød2 h6

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

1.00 1.00 34 15 5.5 3 16.201.01 1.00 34 15 5.5 3 16.201.02 1.00 34 15 5.5 3 16.201.03 1.00 34 15 5.5 3 16.201.50 2.00 40 18 8 3 14.101.51 2.00 43 20 9 3 14.101.52 2.00 43 20 9 3 14.101.53 2.00 43 20 9 3 14.101.97 2.00 49 24 11 4 14.101.98 2.00 49 24 11 4 14.101.99 2.00 49 24 11 4 14.102.00 2.00 49 24 11 4 13.302.01 2.00 49 24 11 4 13.302.02 2.00 49 24 11 4 13.302.03 2.00 49 24 11 4 13.302.47 3.00 57 28 14 4 15.402.48 3.00 57 28 14 4 15.402.49 3.00 57 28 14 4 15.402.50 3.00 57 28 14 4 13.002.51 3.00 57 28 14 4 13.002.52 3.00 57 28 14 4 13.002.53 3.00 57 28 14 4 13.002.97 3.00 61 32 15 6 15.602.98 3.00 61 32 15 6 15.602.99 3.00 61 32 15 6 15.603.00 3.00 61 32 15 6 11.503.01 4.00 65 35 16 6 11.503.02 4.00 65 35 16 6 11.503.03 4.00 65 35 16 6 12.803.97 4.00 75 43 19 6 12.803.98 4.00 75 43 19 6 12.803.99 4.00 75 43 19 6 12.804.00 4.00 75 43 19 6 12.804.01 4.00 75 43 19 6 12.804.02 4.00 75 43 19 6 12.804.03 4.00 75 43 19 6 12.804.97 5.00 86 52 23 6 13.904.98 5.00 86 52 23 6 13.904.99 5.00 86 52 23 6 13.90

Guhringguide (cutting rates) page

13

HSS-E

105

455

138

Standard range and technical dataStandard range and technical data

Reamers

HSS-E nc machine chucking reamers (continued)

Perfect combination

Our NC machine chucking reamers are optimally suited to the

application in hydraulic or shrink fit chucks from our GM 300-

program. This combination provides the highest concentricity and

process reliability for the production of holes to required tolerances.

In addition, we also provide the efficient inductive shrink fit systems

GISS 3000 with integrated length pre-adjustment and GISS 2000

for clamping the tools in our shrink fit chucks.

Tool material

Surface finish

Discount group

Guhring no.

Nom.-Ød1

Shank-Ød2 h6

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

5.00 5.00 86 52 23 6 13.905.01 5.00 86 52 23 6 13.905.02 5.00 86 52 23 6 13.905.03 5.00 86 52 23 6 13.905.97 6.00 93 57 26 6 15.405.98 6.00 93 57 26 6 15.405.99 6.00 93 57 26 6 15.406.00 6.00 93 57 26 6 15.406.01 6.00 101 63 28 6 15.406.02 6.00 101 63 28 6 15.406.03 6.00 101 63 28 6 15.407.97 8.00 117 75 33 6 16.507.98 8.00 117 75 33 6 16.507.99 8.00 117 75 33 6 16.508.00 8.00 117 75 33 6 16.508.01 8.00 117 75 33 6 16.508.02 8.00 117 75 33 6 16.508.03 8.00 117 75 33 6 16.509.00 10.00 125 81 36 6 21.009.01 10.00 125 81 36 6 21.009.02 10.00 125 81 36 6 21.009.03 10.00 125 81 36 6 21.009.97 10.00 133 87 38 6 21.009.98 10.00 133 87 38 6 21.009.99 10.00 133 87 38 6 21.00

10.00 10.00 133 87 38 6 21.0010.01 10.00 133 87 38 6 21.0010.02 10.00 133 87 38 6 21.0010.03 10.00 133 87 38 6 21.0011.97 10.00 151 105 44 6 30.0011.98 10.00 151 105 44 6 30.0011.99 10.00 151 105 44 6 30.0012.00 10.00 151 105 44 6 30.0012.01 10.00 151 105 44 6 30.0012.02 10.00 151 105 44 6 30.0012.03 10.00 151 105 44 6 30.00

Guhringguide (cutting rates) page

14

HSS-E

11

105

490

d2

l1

d1

l 4

l2

138

Standard range and technical data

Reamers

Standard range and technical data

HSS-E nc machine chucking reamers

bright

Product information

• right hand cutting• left hand spiral flutes• ≤ Ø 3.70 mm with external centres

at both ends > Ø 3.70 mm with internal centres at both ends

NC machine chucking reamers are similar to DIN 212 with straight shank (h6) for standardised tool clamping in hydraulic or shrink fit chucks. The combination of NC machine chucking reamer and hydraulic, high precision clamping or shrink fit chuck respectively offers highest concentricity and process reliability for the production of holes to required tolerances.

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

Shank-Ød2 h6

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

1.50 2.00 40 18 8 3 11.101.60 2.00 43 20 9 3 12.401.70 2.00 43 20 9 3 12.401.80 2.00 46 22 10 4 12.401.90 2.00 46 22 10 4 12.402.00 2.00 49 24 11 4 10.702.10 2.00 49 24 11 4 13.002.20 3.00 53 26 12 4 13.002.30 3.00 53 26 12 4 13.002.40 3.00 57 28 14 4 13.002.50 3.00 57 28 14 4 10.702.60 3.00 57 28 14 4 13.902.70 3.00 61 32 15 6 13.902.80 3.00 61 32 15 6 13.902.90 3.00 61 32 15 6 13.903.00 3.00 61 32 15 6 9.803.10 4.00 65 35 16 6 13.003.20 4.00 65 35 16 6 13.003.30 4.00 65 35 16 6 13.003.40 4.00 70 40 18 6 13.003.50 4.00 70 40 18 6 11.503.60 4.00 70 40 18 6 14.503.70 4.00 70 40 18 6 14.503.80 4.00 75 43 19 6 14.503.90 4.00 75 43 19 6 10.504.00 4.00 75 43 19 6 10.704.10 4.00 75 43 19 6 13.604.20 4.00 75 43 19 6 13.604.30 5.00 80 47 21 6 13.604.40 5.00 80 47 21 6 13.604.50 5.00 80 47 21 6 11.504.60 5.00 80 47 21 6 14.704.70 5.00 80 47 21 6 14.704.80 5.00 86 52 23 6 14.704.90 5.00 86 52 23 6 14.705.00 5.00 86 52 23 6 11.105.10 5.00 86 52 23 6 14.705.20 5.00 86 52 23 6 14.705.30 5.00 86 52 23 6 14.70

Guhringguide (cutting rates) page

15

HSS-E

105

490

138

Standard range and technical dataStandard range and technical data

Reamers

HSS-E nc machine chucking reamers (continued)Tool material

Surface finish

Discount group

Guhring no.

Nom.-Ød1

Shank-Ød2 h6

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

5.40 6.00 93 57 26 6 14.705.50 6.00 93 57 26 6 13.605.60 6.00 93 57 26 6 14.705.70 6.00 93 57 26 6 14.705.80 6.00 93 57 26 6 14.705.90 6.00 93 57 26 6 14.706.00 6.00 93 57 26 6 11.906.10 6.00 101 63 28 6 14.706.20 6.00 101 63 28 6 14.706.30 6.00 101 63 28 6 14.706.40 6.00 101 63 28 6 14.706.50 6.00 101 63 28 6 14.106.60 6.00 101 63 28 6 14.706.70 6.00 101 63 28 6 14.706.80 8.00 109 69 31 6 14.706.90 8.00 109 69 31 6 14.707.00 8.00 109 69 31 6 14.107.10 8.00 109 69 31 6 16.507.20 8.00 109 69 31 6 16.507.30 8.00 109 69 31 6 16.507.40 8.00 109 69 31 6 16.507.50 8.00 109 69 31 6 16.207.60 8.00 117 75 33 6 17.307.70 8.00 117 75 33 6 17.307.80 8.00 117 75 33 6 17.307.90 8.00 117 75 33 6 17.308.00 8.00 117 75 33 6 14.708.10 8.00 117 75 33 6 20.008.20 8.00 117 75 33 6 20.008.30 8.00 117 75 33 6 20.008.40 8.00 117 75 33 6 20.008.50 8.00 117 75 33 6 18.508.60 10.00 125 81 36 6 18.808.70 10.00 125 81 36 6 18.808.80 10.00 125 81 36 6 18.808.90 10.00 125 81 36 6 18.809.00 10.00 125 81 36 6 17.109.10 10.00 125 81 36 6 19.309.20 10.00 125 81 36 6 19.309.30 10.00 125 81 36 6 19.309.40 10.00 125 81 36 6 19.309.50 10.00 125 81 36 6 19.109.60 10.00 133 87 38 6 19.909.70 10.00 133 87 38 6 19.909.80 10.00 133 87 38 6 19.909.90 10.00 133 87 38 6 19.90

10.00 10.00 133 87 38 6 17.3011.00 10.00 142 96 41 6 24.5012.00 10.00 151 105 44 6 25.5013.00 10.00 151 105 44 6 28.5014.00 14.00 160 110 47 8 29.5015.00 14.00 162 112 50 8 30.0016.00 14.00 170 120 52 8 31.0017.00 14.00 175 123 54 8 36.5018.00 14.00 182 130 56 8 38.5019.00 16.00 189 131 58 8 44.5020.00 16.00 195 135 60 8 43.00

Guhringguide (cutting rates) page

16

HSS-E

10 10 11 11

105 105 105 105

401 402 457 467

A B A C

d2

l1

d1

l 4

l2

138 139 138 139

Standard range and technical data

Reamers

Standard range and technical data

HSS-E Machine chucking reamers

bright

Product information

Guhring no. 401/402• right hand cutting• form A: straight-fluted

form B: left hand spiral flutes• with external centres on both ends

Guhring no. 457/467• left hand cutting• straight-fluted• form A: with external centres on

both endsform C: with internal centres on both ends

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 212 left hand cuttingTolerance to Din 1420, for

hole tolerance zone H7

Nom.-Ød1

Shank-Ød2 h9

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

1.00 1.00 34 11.5 5.5 3 20.50 19.70 41.001.10 1.10 34 12.5 6.5 3 20.501.20 1.20 38 13.5 7.5 3 21.00 21.001.30 1.30 38 13.5 7.5 3 23.001.40 1.40 40 14 8 3 19.70 19.501.50 1.50 40 14 8 3 17.40 16.20 34.001.60 1.60 43 15 9 4 18.40 19.901.70 1.70 43 15 9 4 19.901.80 1.80 46 16 10 4 21.00 19.901.90 1.90 46 16 10 4 19.902.00 2.00 49 17 11 4 17.20 15.602.10 2.10 49 17 11 4 19.002.20 2.20 53 18 12 4 20.50 21.002.30 2.30 53 18 12 4 19.902.40 2.50 53 27 12 4 18.102.50 2.50 57 27 14 4 16.80 15.602.60 2.50 57 27 14 6 20.002.70 2.80 61 31 15 6 19.002.80 2.80 61 31 15 6 20.50 20.002.90 3.00 61 31 15 6 20.003.00 3.00 61 31 15 6 14.60 14.20 45.003.10 3.20 65 34 16 6 18.803.20 3.20 65 34 16 6 19.00 18.803.30 3.20 70 38 18 6 17.703.40 3.50 70 38 18 6 17.703.50 3.50 70 38 18 6 17.20 16.80 37.003.60 3.50 70 38 18 6 21.003.70 3.50 70 38 18 6 21.004.00 4.00 75 43 19 6 51.004.50 4.50 80 47 21 6 52.00 49.005.00 5.00 86 52 23 6 52.00 50.005.50 5.60 93 57 26 6 49.00 52.006.00 5.60 93 57 26 6 53.00 50.006.50 6.30 101 63 28 6 52.007.00 7.10 109 69 31 6 55.008.00 8.00 117 75 33 6 53.009.00 9.00 125 81 36 6 55.00

10.00 10.00 133 87 38 6 55.00

Guhringguide (cutting rates) page

17

HSS-E

11

105

496

B/D

d2

l1

d1

l 4

l2

139

Standard range and technical dataStandard range and technical data

Reamers

HSS-E Machine chucking reamers

Sh

ank-

Ø =

No

m.-

Ø

Product information

• right hand cutting• left hand spiral flutes• ≤ ø 3.75 mm with external centres

on both ends > ø 3.75 mm with internal centres on both ends

• Ø in increments of 0.01 mm

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 212

Tolerance from Ø 0.95 to 5.50 mm:0.000/+0.004from Ø 5.51 to 12.05 mm:0.000/+0.005

Nom.-Ø d1from to

Shank-Ød2 h9

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

0.95 … 1.06 34 11.5 5.5 3 23.501.07 … 1.18 34 12.5 6.5 3 23.501.19 … 1.32 38 13.5 7.5 3 23.501.33 … 1.39 40 13.5 8 3 23.501.40 … 1.49 40 14 8 3 21.501.50 … 1.50 40 14 8 3 20.501.51 … 1.70 43 15 9 3 20.501.71 … 1.90 46 16 10 4 20.501.91 … 1.99 49 17 11 4 20.502.00 … 2.09 49 17 11 4 19.102.10 … 2.12 49 17 11 4 22.002.13 … 2.36 53 18 12 4 22.002.37 … 2.49 2.50 57 27 14 4 22.002.50 … 2.59 2.50 57 27 14 4 17.202.60 … 2.65 2.50 57 27 14 4 20.502.66 … 2.80 2.80 61 31 15 6 20.502.81 … 2.99 3.00 61 31 15 6 20.503.00 … 3.00 3.00 61 31 15 6 15.303.01 … 3.09 3.20 65 34 16 6 15.303.10 … 3.35 3.20 65 34 16 6 19.703.36 … 3.49 3.50 70 38 18 6 19.703.50 … 3.59 3.50 70 38 18 6 17.203.60 … 3.75 3.50 70 38 18 6 21.503.76 … 3.81 4.00 75 43 19 6 21.503.82 … 4.20 4.00 75 43 19 6 17.704.21 … 4.25 4.00 75 43 21 6 20.504.26 … 4.75 4.50 80 47 21 6 20.504.76 … 5.20 5.00 86 52 23 6 18.105.21 … 5.30 5.00 86 52 23 6 20.005.31 … 6.00 5.60 93 57 26 6 20.006.01 … 6.11 6.30 101 63 28 6 20.006.12 … 6.70 6.30 101 63 28 6 21.506.71 … 7.50 7.10 109 69 31 6 21.507.51 … 8.20 8.00 117 75 33 6 21.508.21 … 8.50 8.00 117 75 33 6 27.008.51 … 9.50 9.00 125 81 36 6 27.00

9.51 … 10.20 10.00 133 87 38 6 27.0010.21 … 10.60 10.00 133 87 38 6 34.5010.61 … 11.20 10.00 142 96 41 6 34.5011.21 … 11.80 10.00 142 96 41 6 39.5011.81 … 12.00 10.00 151 103 44 6 39.5012.01 … 12.05 10.00 151 103 44 6 39.50Guhringguide (cutting rates) page

18

HSS-E

11 11 11 11

105 105 105 105

440 1431 468 641

C C D D

d2

l1

d1

l 4

l2

139 139 139 139

Standard range and technical data

Reamers

Standard range and technical data

HSS-E Machine chucking reamers

bright TiN

Product information

• right hand cutting• form C: straight-fluted

form D: left hand spiral flutes• with internal centres on both ends• Guhring no. 1431 with axial coolant

duct for the machining of blind holes

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 212

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

Shank-Ød2 h9

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

3.80 4.00 75 43 19 6 20.003.90 4.00 75 43 19 6 15.304.00 4.00 75 43 19 6 16.20 15.60 31.004.10 4.00 75 43 19 6 18.804.20 4.00 75 43 19 6 18.804.30 4.50 80 47 21 6 19.704.40 4.50 80 47 21 6 18.804.50 4.50 80 47 21 6 17.40 16.804.60 4.50 80 47 21 6 21.004.70 4.50 80 47 21 6 20.504.80 5.00 86 52 23 6 20.504.90 5.00 86 52 23 6 20.505.00 5.00 86 52 23 6 17.20 22.50 16.20 30.505.10 5.00 86 52 23 6 20.505.20 5.00 86 52 23 6 20.505.30 5.00 86 52 23 6 20.505.40 5.60 93 57 26 6 20.505.50 5.60 93 57 26 6 20.00 25.50 19.70 39.505.60 5.60 93 57 26 6 21.005.70 5.60 93 57 26 6 21.005.80 5.60 93 57 26 6 21.005.90 5.60 93 57 26 6 21.006.00 5.60 93 57 26 6 17.70 23.00 17.20 32.006.10 6.30 101 63 28 6 21.006.20 6.30 101 63 28 6 20.506.30 6.30 101 63 28 6 20.506.40 6.30 101 63 28 6 21.006.50 6.30 101 63 28 6 21.00 27.00 20.50 39.506.60 6.30 101 63 28 6 21.506.70 6.30 101 63 28 6 20.506.80 7.10 109 69 31 6 20.506.90 7.10 109 69 31 6 20.507.00 7.10 109 69 31 6 20.50 26.00 20.50 39.507.10 7.10 109 69 31 6 23.007.20 7.10 109 69 31 6 25.007.30 7.10 109 69 31 6 23.007.40 7.10 109 69 31 6 23.007.50 7.10 109 69 31 6 25.50 31.00 22.007.60 8.00 117 75 33 6 23.507.70 8.00 117 75 33 6 23.507.80 8.00 117 75 33 6 24.507.90 8.00 117 75 33 6 23.508.00 8.00 117 75 33 6 22.00 27.50 21.00 40.508.10 8.00 117 75 33 6 29.008.20 8.00 117 75 33 6 29.00

Guhringguide (cutting rates) page

19

HSS-E

105 105 105 105

440 1431 468 641

139 139 139 139

Standard range and technical dataStandard range and technical data

Reamers

HSS-E Machine chucking reamers (continued)Tool material

Surface finish

Discount group

Guhring no.

Nom.-Ød1

Shank-Ød2 h9

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

8.30 8.00 117 75 33 6 29.508.40 8.00 117 75 33 6 29.008.50 8.00 117 75 33 6 27.50 35.50 25.508.60 9.00 125 81 36 6 26.508.70 9.00 125 81 36 6 26.508.80 9.00 125 81 36 6 26.508.90 9.00 125 81 36 6 26.509.00 9.00 125 81 36 6 25.50 33.50 25.00 47.009.10 9.00 125 81 36 6 28.509.20 9.00 125 81 36 6 28.509.30 9.00 125 81 36 6 27.009.40 9.00 125 81 36 6 27.009.50 9.00 125 81 36 6 29.00 36.50 26.509.60 10.00 133 87 38 6 28.509.70 10.00 133 87 38 6 28.509.80 10.00 133 87 38 6 28.509.90 10.00 133 87 38 6 28.50

10.00 10.00 133 87 38 6 26.00 34.00 25.00 47.5010.10 10.00 133 87 38 6 35.5010.20 10.00 133 87 38 6 35.5010.30 10.00 133 87 38 6 34.0010.40 10.00 133 87 38 6 39.0010.50 10.00 133 87 38 6 35.50 43.50 31.5010.60 10.00 133 87 38 6 40.0010.70 10.00 142 96 41 6 40.0010.80 10.00 142 96 41 6 41.0010.90 10.00 142 96 41 6 36.0011.00 10.00 142 96 41 6 36.50 44.50 35.50 68.0011.10 10.00 142 96 41 6 40.5011.20 10.00 142 96 41 6 40.5011.30 10.00 142 96 41 6 40.5011.40 10.00 142 96 41 6 40.5011.50 10.00 142 96 41 6 44.00 52.00 38.0011.60 10.00 142 96 41 6 42.0011.70 10.00 142 96 41 6 42.0011.80 10.00 142 96 41 6 42.0011.90 10.00 151 105 44 6 42.0012.00 10.00 151 105 44 6 38.00 46.00 36.50 70.0013.00 10.00 151 105 44 6 42.50 50.00 41.50 78.0014.00 12.50 160 110 47 8 43.00 51.00 42.50 80.0015.00 12.50 162 112 50 8 45.00 53.00 43.50 84.0016.00 12.50 170 120 52 8 47.50 58.00 45.00 86.0017.00 14.00 175 123 54 8 55.00 66.00 54.00 113.0018.00 14.00 182 130 56 8 58.00 68.00 55.00 105.0019.00 16.00 189 131 58 8 66.00 76.00 64.00 123.0020.00 16.00 195 137 60 8 63.00 73.00 62.00 119.00

Guhringguide (cutting rates) page

20

HSS-E

10 10 10

105 105 105

404 405 642

A B B

l2d

1

l4

l1

139 139 139

Standard range and technical data

Reamers

Standard range and technical data

HSS-E Machine chucking reamers

bright TiN

Product information

• right hand cutting• form A: straight-fluted

form B: left hand spiral flutes• Ø 3.00 mm with external centre on

cutting end, with internal centre on shank end> Ø 3.00 mm with internal centres on both ends

• ≤ Ø 4.00 mm to Guhring standard

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 208

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

Morsetaper

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

3.00 1 115 49.5 15 6 42.00 40.50 4.00 1 125 59.5 19 6 40.50 40.00 5.00 1 133 67.5 23 6 40.50 40.00 6.00 1 138 72.5 26 6 40.50 40.00 7.00 1 150 84.5 31 6 43.00 42.50 8.00 1 156 90.5 33 6 42.50 42.50 66.00 9.00 1 162 96.5 36 6 48.50 47.50 70.0010.00 1 168 102.5 38 6 36.50 36.00 59.0011.00 1 175 109.5 41 6 40.50 40.00 63.0012.00 1 182 116.5 44 6 40.00 39.50 62.0013.00 1 182 116.5 44 6 42.50 41.5014.00 1 189 123.5 47 8 42.50 42.00 64.0015.00 2 204 124 50 8 52.00 51.00 73.0016.00 2 210 130 52 8 53.00 51.00 75.0017.00 2 214 134 54 8 57.00 55.00 92.0018.00 2 219 139 56 8 59.00 58.00 103.0019.00 2 223 143 58 8 63.00 61.00 106.0020.00 2 228 148 60 8 63.00 61.00 106.0021.00 2 232 152 62 8 70.00 69.0022.00 2 237 157 64 8 70.00 69.0023.00 2 241 161 66 8 80.00 79.0024.00 3 268 169 68 8 81.00 80.0025.00 3 268 169 68 8 85.00 84.0026.00 3 273 174 70 8 92.00 89.0027.00 3 277 178 71 10 104.00 98.0028.00 3 277 178 71 10 104.00 98.0029.00 3 281 182 73 10 114.00 111.0030.00 3 281 182 73 10 105.00 102.0031.00 3 285 186 75 10 138.00 132.0032.00 4 317 193 77 10 140.00 133.0033.00 4 317 193 77 10 150.00 150.0034.00 4 321 197 78 10 155.00 150.0035.00 4 321 197 78 10 155.00 150.0036.00 4 325 201 79 10 167.00 163.0037.00 4 329 205 81 10 185.00 179.0038.00 4 329 205 81 10 185.00 179.0040.00 4 329 205 81 10 185.00 180.0042.00 4 333 209 82 12 197.00 197.0044.00 4 336 212 83 12 240.00 232.00

Guhringguide (cutting rates) page

21

HSS-E

105 105 105

404 405 642

139 139 139

Standard range and technical dataStandard range and technical data

Reamers

HSS-E Machine chucking reamers (continued)

HSS-E special reamers

Specifically for the machining of holes for high load rivets for the

wing sections on commercial aircraft we have developed the so-

called taperlock reamer (on the right in the picture) to customer

specifications.

The tool is a combination of drill and reamer with a countersink

section and internal cooling for the production of highly precise

straight and tapered holes in aluminium.

For the production of dowel location holes to tolerance H7 for a

crankshaft we have developed a special reamer that is supported

in a guide bush with oil grooves (left in the picture).

This special reamer enables the production of the required

hole tolerance despite the application on a transfer line with an

insufficiently rigid spindle and poor concentricity.

Guhring will willingly produce a special reamer for your specific

machining task. For enquiries or orders please complete the

questionnaire on page 170.

Tool material

Surface finish

Discount group

Guhring no.

Nom.-Ød1

Morsetaper

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

45.00 4 336 212 83 12 240.00 236.0046.00 4 340 216 84 12 276.00 278.0047.00 4 340 216 84 12 292.00 282.0048.00 4 344 220 86 12 294.00 294.0050.00 4 344 220 86 12 306.00 294.00

Guhringguide (cutting rates) page

22

HSS-E

11

105

442

B

d1

l4

l1

Standard range and technical data

Reamers

Standard range and technical data

HSS-E Machine chucking reamers - blanksProduct information

• right hand cutting• left hand spiral flutes• with internal centres on both ends• ground• without taper lead

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 208

Tolerance –

for nom.-Ø d1min. max.

Blank-Ød1

Morsetaper

Totallength l1

Cutting edgelength l4

No. offlutes Price per unit (€)

7.50 … 8.00 8.30 1 156 33 6 41.00 9.50 … 10.00 10.30 1 168 38 6 38.0010.61 … 11.20 11.50 1 175 41 6 47.5011.21 … 11.80 12.10 1 175 41 6 48.0012.51 … 13.20 13.50 1 182 44 6 44.0013.21 … 14.00 14.30 1 189 47 6 44.0015.01 … 16.00 16.30 2 210 52 6 53.0017.01 … 18.00 18.30 2 219 56 6 56.0018.01 … 19.00 19.30 2 223 58 6 59.0021.21 … 22.40 22.90 2 237 64 6 68.0023.61 … 24.00 24.50 3 268 68 6 91.0024.01 … 25.00 25.50 3 268 68 6 84.0033.51 … 34.00 34.50 4 321 78 6 172.00

Guhringguide (cutting rates) page

bright

23

HSS-E

11 11 11

105 105 105

488 489 1432

A B A

d2

d1

l 4

l1

139 139 139

Standard range and technical dataStandard range and technical data

Reamers

HSS-E machine reamers Product information

• right hand cutting• form A: straight-fluted

form B: left hand spiral flutes• with internal centres on both ends• Guhring no. 1432 with axial coolant duct for the machining of blind holes

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 8089

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

Shank-Ød2 h8

Totallength l1

Cutting edgelength l4

No. offlutes Price per unit (€)

4.00 3.55 56 20 6 15.30 15.304.50 4.00 63 22 6 17.70 17.705.00 4.00 63 22 6 18.10 17.20 23.505.50 5.00 63 22 6 20.50 19.70 26.006.00 5.00 63 22 6 17.70 17.20 23.006.50 5.00 63 22 6 23.50 20.50 29.507.00 6.30 71 25 6 20.50 20.50 26.007.50 6.30 71 25 6 25.50 23.50 31.008.00 6.30 71 25 6 21.00 20.50 27.008.50 6.30 71 25 6 27.50 26.00 35.509.00 8.00 71 25 6 25.00 24.50 33.009.50 8.00 71 25 6 27.00 27.00 35.00

10.00 8.00 71 25 6 25.50 25.00 33.0010.50 8.00 71 25 6 35.00 32.00 43.0011.00 10.00 80 28 6 35.00 34.50 43.0011.50 10.00 80 28 6 43.50 40.50 51.0012.00 10.00 80 28 6 36.50 36.00 44.5013.00 10.00 80 28 6 41.50 40.50 49.0014.00 12.50 90 32 8 42.00 41.50 49.5015.00 12.50 90 32 8 43.50 42.50 51.0016.00 12.50 90 32 8 45.00 44.50 55.0017.00 12.50 90 32 8 51.00 51.00 62.0018.00 16.00 100 36 8 57.00 55.00 67.0019.00 16.00 100 36 8 64.00 62.00 75.0020.00 16.00 100 36 8 61.00 59.00 71.00

Guhringguide (cutting rates) page

24

HSS-E

11

105

497

B

d2

d1

l 4

l1

139

Standard range and technical data

Reamers

Standard range and technical data

HSS-E machine reamers

bright

Product information

• right hand cutting• left hand spiral flutes• with internal centres on both ends• Ø in increments of 0.01 mm

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 8089

Tolerance from Ø 3,76 - 5,50 mm:0,000/+0,004from Ø 5,51 - 12,00 mm:0,000/+0,005

Nom.-Ø d1from to

Shank-Ød2

Totallength l1

Cutting edgelength l4

No. offlutes Price per unit (€)

3.76 … 3.81 3.55 56 20 6 22.003.82 … 4.20 3.55 56 20 6 16.804.21 … 4.25 3.55 56 20 6 20.004.26 … 4.75 4.00 63 22 6 20.004.76 … 5.20 4.00 63 22 6 17.705.21 … 5.30 4.00 63 22 6 20.005.31 … 5.70 5.00 63 22 6 20.005.71 … 6.11 5.00 63 22 6 20.006.12 … 6.70 5.00 63 22 6 21.006.71 … 8.20 6.30 71 25 6 21.008.21 … 8.50 6.30 71 25 6 27.008.51 … 10.20 8.00 71 25 6 27.00

10.21 … 10.60 8.00 71 25 6 34.5010.61 … 11.20 10.00 80 28 6 34.5011.21 … 12.00 10.00 80 28 6 40.00

Guhringguide (cutting rates) page

25

HSS-E

11

105

458

B

Standard range and technical dataStandard range and technical data

Reamers

HSS-E Machine chucking reamers setsProduct information

• righ hand cutting• left hand spiral flutes

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 8089

Tolerance from Ø 0,97 - 5,50 mm:0,000/+0,004from Ø 5,51 - 12,00 mm:0,000/+0,005

Nom.-Ø d1from to

No.per set

Code no.Price per set (€)

3.76 … 4.55 80 4.550 1500.005.31 … 6.00 70 6.000 1380.006.01 … 6.70 70 6.700 1500.007.41 … 8.10 70 8.100 1500.008.11 … 8.80 70 8.800 1840.008.81 … 9.40 60 9.400 1600.009.41 … 10.00 60 10.000 1600.00

10.01 … 10.50 50 10.500 1560.0010.51 … 11.00 50 11.000 1700.0011.01 … 11.50 50 11.500 1880.0011.51 … 12.00 50 12.000 1980.00

Guhringguide (cutting rates) page

26

HSS-E

11 10

105 105

469 403

E –

d1

l4

l1

l2

d2

139 139

Standard range and technical data

Reamers

Standard range and technical data

HSS-E quick spiral reamers

bright

Product information

• right hand cutting• with approx. 45° left hand spiral

flutes• form E: with internal centres on

both endsGuhring no. 403: with external centres on both ends (Guhring standard)

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 212

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

Shank-Ød2 h9

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

1.00 1.00 34 9.5 5.5 2 22.001.20 1.20 38 11.5 7.5 2 26.501.40 1.40 40 12 8 2 23.501.50 1.50 40 12 8 2 17.201.60 1.60 43 13 9 2 24.001.80 1.80 46 14 10 2 22.502.00 2.00 49 15 11 3 17.402.20 2.20 53 16 12 3 25.502.50 2.50 57 27 14 3 18.402.80 2.80 61 31 15 3 29.003.00 3.00 61 31 15 3 20.503.20 3.20 65 34 16 3 30.503.50 3.50 70 38 18 3 24.504.00 4.00 75 43 19 3 20.504.50 4.50 80 47 21 3 24.505.00 5.00 86 52 23 3 22.505.50 5.60 93 57 26 3 24.506.00 5.60 93 57 26 3 22.006.50 6.30 101 63 28 3 27.007.00 7.10 109 69 31 3 25.007.50 7.10 109 75 31 3 30.008.00 8.00 117 75 33 3 25.008.50 8.00 117 81 33 3 36.509.00 9.00 125 81 36 3 34.009.50 9.00 125 87 36 3 39.00

10.00 10.00 133 96 38 3 31.5011.00 10.00 142 105 41 3 40.5012.00 10.00 151 105 44 3 38.0013.00 10.00 151 110 44 3 54.0014.00 12.50 160 112 47 3 50.0015.00 12.50 162 120 50 3 51.0016.00 12.50 170 123 52 3 54.0017.00 14.00 175 130 54 3 80.0018.00 14.00 182 131 56 3 73.0019.00 16.00 189 137 58 3 84.0020.00 16.00 195 137 60 3 80.00

Guhringguide (cutting rates) page

27

HSS-E

10

105

406

C

d1

l4

l1

l2

139

Standard range and technical dataStandard range and technical data

Reamers

HSS-E quick spiral reamersProduct information

• right hand cutting• with approx. 45° left hand spiral

flutes• Ø 3.00 mm with external centre on

cutting end, with internal centre on shank end> Ø 3.00 mm with internal centres on both ends

• ≤ Ø 4.00 mm to Guhring standard

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 208

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

Morsetaper

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

3.00 1 115 49.5 15 3 47.504.00 1 125 59.5 19 3 47.505.00 1 133 67.5 23 3 47.506.00 1 138 72.5 26 3 47.007.00 1 150 84.5 31 3 53.008.00 1 156 90.5 33 3 50.009.00 1 162 96.5 36 3 55.00

10.00 1 168 102.5 38 3 42.0011.00 1 175 109.5 41 3 47.5012.00 1 182 116.5 44 3 43.5013.00 1 182 116.5 44 3 51.0014.00 1 189 123.5 47 3 51.0015.00 2 204 124 50 3 55.0016.00 2 210 130 52 3 55.0017.00 2 214 134 54 3 61.0018.00 2 219 139 56 3 61.0019.00 2 223 143 58 3 68.0020.00 2 228 148 60 3 63.0021.00 2 232 152 62 3 77.0022.00 2 237 157 64 3 72.0023.00 2 241 161 66 3 90.0024.00 3 268 169 68 3 90.0025.00 3 268 169 68 3 90.0026.00 3 273 174 70 3 96.0027.00 3 277 178 71 3 112.0028.00 3 277 178 71 3 106.0029.00 3 281 182 73 3 130.0030.00 3 281 182 73 3 112.0031.00 3 285 187 75 3 183.0032.00 4 317 193 77 3 151.00

Guhringguide (cutting rates) page

28

HSS

11

105

414

l1

d1

l4

l6

l2

142

Standard range and technical data

Reamers

Standard range and technical data

HSS machine bridge reamers

bright nitrided

Product information

• right hand cutting• with approx. 25° left hand spiral

flutes• with internal centres on both ends• 1:10 on taper lead length

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 311

Tolerance –

Nom.-Ød1

Morsetaper

Totallength l1

Effectivelength l2

Cutting edgelength l4

Length oftaper l6

No. offlutes Price per unit (€)

6.40 1 151 85.5 75 19 4 55.007.40 1 156 90.5 80 22 4 53.008.40 1 161 95.5 85 25 4 58.009.50 1 166 100.5 90 27 4 53.00

10.00 1 171 105.5 95 30 4 53.0011.00 1 176 110.5 100 33 4 53.0012.00 2 199 119 105 39 4 58.0013.00 2 199 119 105 39 4 58.0014.00 2 209 129 115 42 5 59.0015.00 2 219 139 125 45 5 61.0016.00 2 229 149 135 48 5 64.0017.00 3 251 152 135 51 5 76.0018.00 3 261 162 145 58 5 82.0019.00 3 261 162 145 58 5 90.0020.00 3 271 172 155 62 5 90.0021.00 3 271 172 155 62 5 95.0022.00 3 281 182 165 66 5 101.0023.00 3 281 182 165 66 5 106.0024.00 3 296 197 180 72 5 114.0025.00 3 296 197 180 72 5 115.0026.00 3 296 197 180 72 5 125.0027.00 3 311 212 195 78 5 140.0028.00 3 311 212 195 78 5 140.0030.00 3 311 212 195 78 5 159.0031.00 3 326 227 210 84 5 183.0032.00 4 354 230 210 84 5 204.0033.00 4 354 230 210 84 5 230.0034.00 4 364 240 220 88 5 242.0037.00 4 364 240 220 88 5 274.0040.00 4 374 250 230 92 5 302.00

Guhringguide (cutting rates) page

29

HSS-E

11

105

419

l1

d1

l3

l4

d2

139

Standard range and technical dataStandard range and technical data

Reamers

HSS-E machine bottoming reamersProduct information

• right hand cutting• straight-fluted

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance to Din 1420, forhole tolerance zone H7

Nom.-Ø d1

Shank-Ø d2

Internal face cutting-Ø

Totallength l1

Flutelength l3

Cutting edgelength l4

Max. depthof hole

No. offlutes Price per unit (€)

2.50 2.50 0.00 57 33 12 33 4 37.503.00 3.00 1.50 61 33 12 33 6 29.003.50 3.50 1.50 70 39 12 33 6 29.504.00 4.00 1.70 75 44 16 44 6 29.504.50 4.50 1.70 80 48 16 48 6 31.505.00 5.00 1.70 86 53 20 53 6 31.506.00 6.00 2.00 93 59 20 59 6 33.007.00 7.00 2.50 109 69 22 69 6 42.508.00 8.00 3.00 117 71 24 71 6 41.509.00 9.00 3.50 125 77 24 77 6 47.50

10.00 10.00 4.50 133 84 26 84 6 45.0011.00 11.00 4.50 142 89 26 89 6 58.0012.00 12.00 4.50 151 96.5 26 96 6 56.00

Guhringguide (cutting rates) page

30

HSS-E

11

105

420

l1d

1

l3

l2

l4

139

Standard range and technical data

Reamers

Standard range and technical data

HSS-E machine bottoming reamers

bright

Product information

• right hand cutting• straight-fluted

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance to Din 1420, forhole tolerance zone H7

Nom.-Ø d1

Morsetaper

Internal face cutting-Ø

Totallength l1

Flutelength l3

Cutting edgelength l4

Max. depthof hole

No. offlutes Price per unit (€)

3.00 1 1.50 114 48.5 33 12 6 62.003.50 1 1.50 120 54.5 39 12 6 72.004.00 1 1.70 124 58.5 48 16 6 70.004.50 1 1.70 128 62.5 48 16 6 79.005.00 1 2.00 133 67.5 59 20 6 56.006.00 1 2.00 138 72.5 59 20 6 63.007.00 1 2.50 150 84.5 69 22 6 66.008.00 1 3.00 156 90.5 71 24 6 61.009.00 1 3.50 162 96.5 77 24 6 72.00

10.00 1 4.50 168 102.5 84 26 6 66.0011.00 1 4.50 175 109.5 84 26 6 64.0012.00 1 4.50 182 116.5 96.5 26 6 63.0013.00 1 5.00 182 116.5 96.5 26 6 66.0014.00 1 5.00 189 123.5 103.5 28 6 72.0015.00 2 5.00 204 124 104 28 6 79.0016.00 2 6.00 210 130 108 30 6 84.0017.00 2 6.00 214 134 112 30 6 92.0018.00 2 6.00 219 139 117 30 6 95.0019.00 2 8.00 223 143 119 32 6 104.0020.00 2 8.00 228 148 124 32 6 104.0021.00 3 8.00 251 152 128 36 6 134.0022.00 3 8.00 256 157 133 36 6 127.0024.00 3 8.00 268 169 139 36 6 151.0025.00 3 8.00 268 169 139 38 6 151.0026.00 3 8.00 273 174 144 42 6 156.0028.00 3 10.00 277 178 148 44 6 186.0030.00 3 10.00 281 182 150 44 10 194.0031.00 3 10.00 285 186 154 44 10 376.0032.00 4 10.00 317 193 157 44 10 240.00

Guhringguide (cutting rates) page

31

HSS-E

11

105

430

A

l1

d1

l4

l2

143

Standard range and technical dataStandard range and technical data

Reamers

HSS-E expanding machine reamersProduct information

• right hand cutting• straight-fluted• Ø-range adjustable screw setting:

≤ Ø 12.00 mm by approx. 0.015 mm ≤ Ø 17.00 mm by approx. 0.020 mm ≤ Ø 24.00 mm by approx. 0.025 mm ≤ Ø 32.00 mm by approx. 0.030 mm

Attention: Only expand reamer! Because of risk of breakage the pre-tension should never be relieved by turning the set screw anti-clockwise!

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance to Din 1420, forhole tolerance zone H7

Nom.-Ø d1

Morsetaper

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

8.00 1 156 90.5 33 9 73.00 9.00 1 162 96.5 36 9 85.0010.00 1 168 102.5 38 9 85.0011.00 1 175 109.5 41 9 68.0012.00 1 182 116.5 44 9 84.0013.00 1 182 116.5 44 9 93.0014.00 1 189 123.5 47 9 90.0015.00 2 204 124 50 9 94.0016.00 2 210 130 52 9 94.0017.00 2 214 134 54 9 102.0018.00 2 219 139 56 9 101.0019.00 2 223 143 58 9 108.0020.00 2 228 148 60 9 106.0021.00 2 232 152 62 12 144.0022.00 2 237 157 64 12 122.0023.00 2 241 161 66 12 148.0024.00 3 268 169 68 12 140.0025.00 3 268 169 68 12 138.0026.00 3 273 174 70 12 153.0027.00 3 277 178 71 12 174.0028.00 3 277 178 71 12 146.0029.00 3 281 182 73 12 163.0030.00 3 281 182 73 12 165.0031.00 3 285 186 75 12 244.0032.00 4 317 193 77 12 214.00

Guhringguide (cutting rates) page

32

HSS-E

11

105

431

l1

d5

l5

l2d

1

143

Standard range and technical data

Reamers

Standard range and technical data

HSS-E stepped machine reamers

bright steam tempered

Product information

• right hand cutting• left hand spiral flutes• with internal centres on both ends

Thanks to the large guide length, these reamers offer high quality and alignment accuracy for pre-machinining and finishing operations.

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance to Din 1420, forhole tolerance zone H7

Nom.-Ø d1

Morsetaper

Pilot-Ø d5

Totallength l1

Effectivelength l2

Pilotlength l5

No. offlutes Price per unit (€)

5.00 1 4.92 165 99.5 10 6 51.006.00 1 5.92 165 99.5 10 6 51.007.00 1 6.92 185 119.5 10 6 52.008.00 1 7.92 205 139.5 10 6 54.00

10.00 1 9.90 230 164.5 12 6 52.0012.00 1 11.90 230 164.5 12 6 54.0013.00 1 12.90 230 164.5 12 6 56.0014.00 1 13.90 230 164.5 12 8 68.0016.00 2 15.90 250 170.0 12 8 70.0020.00 2 19.90 260 180.0 15 8 80.00

Guhringguide (cutting rates) page

33

HSS-E

10 10 10

105 105 105

407 408 409

A B C

d1

l4

l1

143 143 143

Standard range and technical dataStandard range and technical data

Reamers

HSS-E shell reamersProduct information

• right hand cutting• form A: straight-fluted

form B: left hand spiral flutes form C: with approx. 45° left hand spiral flutes

• form C with different no. of flutes: ≤ Ø 34.00 mm 3 flutes > Ø 34.00 mm 5 flutes

The shell reamers have a taper bore with a taper 1 : 30 and a driving slot to DIN 138.

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 219

Tolerance to Din 1420, for hole tolerance zone H7

Centre –

Nom.-Ød1

Nom.bore-Ø

Totallength l1

Cutting edgelength l4

No. offlutes Price per unit (€)

25.00 13.00 45 32 8 97.00 101.00 110.0026.00 13.00 45 32 8 105.00 105.00 114.0027.00 13.00 45 32 8 127.00 127.00 142.0028.00 13.00 45 32 8 108.00 108.00 115.0029.00 13.00 45 32 8 133.00 133.00 154.0030.00 13.00 45 32 8 104.00 106.00 115.0031.00 16.00 50 36 10 137.00 137.00 151.0032.00 16.00 50 36 10 115.00 120.00 122.0033.00 16.00 50 36 10 124.00 130.00 140.0034.00 16.00 50 36 10 125.00 130.00 133.0035.00 16.00 50 36 10 125.00 130.00 133.0036.00 19.00 56 40 10 136.00 136.00 147.0037.00 19.00 56 40 10 159.00 155.00 175.0038.00 19.00 56 40 10 141.00 141.00 147.0040.00 19.00 56 40 10 141.00 141.00 154.0042.00 19.00 56 40 10 153.00 147.00 157.0044.00 22.00 63 45 12 192.00 198.00 210.0045.00 22.00 63 45 12 198.00 198.00 189.0046.00 22.00 63 45 12 192.00 192.00 216.0047.00 22.00 63 45 12 192.00 192.00 210.0048.00 22.00 63 45 12 184.00 184.00 214.0050.00 22.00 63 45 12 134.00 190.00 222.0052.00 27.00 71 50 12 244.00 254.00 272.0055.00 27.00 71 50 12 244.00 244.00 272.0058.00 27.00 71 50 12 288.00 288.00 330.0060.00 27.00 71 50 12 258.00 258.00 292.0062.00 32.00 80 56 14 348.00 348.00 348.0065.00 32.00 80 56 14 248.00 354.00 348.0068.00 32.00 80 56 14 400.00 400.00 386.0070.00 32.00 80 56 14 394.00 394.00 400.0072.00 40.00 90 63 14 530.00 510.00 482.0075.00 40.00 90 63 14 510.00 530.00 482.0078.00 40.00 90 63 14 600.00 600.00 630.0080.00 40.00 90 63 14 580.00 600.00 488.0082.00 40.00 90 63 14 720.00 720.00 700.0085.00 40.00 90 63 14 720.00 700.00 610.0088.00 50.00 100 71 16 860.00 860.00 860.0090.00 50.00 100 71 16 750.00 720.00 750.0092.00 50.00 100 71 16 990.00 990.00 1160.0095.00 50.00 100 71 16 960.00 960.00 860.0098.00 50.00 100 71 16 1020.00 1020.00 1160.00

100.00 50.00 100 71 16 990.00 990.00 850.00Guhringguide (cutting rates) page

34

14351438

1436

14371434

Standard range and technical data

Reamers

Arbors and attachments Din 217

Draw-off nuts Guhring no.

Nom.-Ømm

Total lengthmm

Price per unit (€)

Discount group105

13 14 10.8016 16 14.0019 18 12.7022 20 18.6027 21 26.5032 27 38.5040 29 31.0050 30 44.50

Arbors complete Guhring no.

Nom.-Ømm

Morse taperTotal

length mmPrice per unit (€)

Discount group105

13 3 250 92.0016 3 261 99.0019 4 298 114.0022 4 312 147.0027 5 359 224.0032 5 376 254.0040 5 396 312.0050 5 416 442.00

Driver rings Guhring no.

Nom.-Ømm

Total lengthmm

Price per unit (€)

Discount group105

13 21 28.0016 23 32.0019 28 36.0022 30 47.0027 35 58.0032 42 67.0040 45 96.0050 50 162.00

Woodruff keys DIN 6888 Guhring no.

Nom.-Ømm

Depthmm

Heightmm

For arbornom. Ø

Price per unit (€)

Discount group105

13 3 3.7 13 1.3516 4 5.0 16 1.9522 5 6.5 19/22 1.8027 6 7.5 27 2.1032 8 9.0 32 2.6050 8 11.0 40/50 2.60

Aufsteck-Halter ohne Zubehör Guhring no.

Nom.-Ømm

Morse taper Price per unit (€)

Discount group105

13 3 78.00

withoutdraw-off nut and

driver ring

16 3 81.0019 4 95.0022 4 119.0027 5 202.0032 5 228.0040 5 228.0050 5 384.00

Carbide machine reamers

• High performance reamers from page 40

• Carbide NC machine chucking reamers from page 44

• Carbide machine chucking reamers from page 48

• Carbide expanding machine reamers from page 52

• Carbide machine reamers from page 54

• Carbide stepped machine reamers from page 55

• Carbide shell reamers from page 56

Car

bid

e m

ach

ine

ream

ers

36

– 1427 44 140

1449 46 140

~ Din 8093 A

1408 48 140

1428 48 141

B

1409 48 141

1429 48 141

~ Din 8094 A

1410 49 141

B

1411 49 141

~ Din 8050 A

717 50 141

B

718 50 141

~ Din 8051 A

719 51 141

B

720 51 141

1685 42 140

1686 43 140

Reamers

table of contents

bright TiAlN

nc machine chucking reamers

Guhring std.

Ø in increments of 0.01 mm, with h6 shankfor the application in hydraulic and shrinkfit chucks, Ø > 4.0 mm with highly unequal flute spacing

carbide/k10 0.98-12.05

Tolerance zone H7, with h6 shankfor the application in hydraulic and shrinkfit chucks,Ø > 4.0 mm with highly unequal flute spacing

carbide/k10 3.00-12.00

Machine chucking reamers

with highly unequal flute spacing

carbide/k10 1.00-20.00

with highly unequal flute spacing

carbide/k10 2.00-20.00

with highly unequal flute spacing

carbide/k10 1.00-20.00

with highly unequal flute spacing

carbide/k10 2.00-20.00

with highly unequal flute spacingcarbide/k10 5.00-40.00

with highly unequal flute spacingcarbide/k10 5.00-40.00

with highly unequal flute spacing

carbide/k10 5.00-20.00

with highly unequal flute spacing

carbide/k10 5.00-20.00

with highly unequal flute spacingcarbide/k10 5.00-40.00

with highly unequal flute spacingcarbide/k10 6.00-38.00

Standard Form Tool illustration Tool material/carbide grade

Surfacefinish

Ø-range Guhringno.

Standard rangepage

Guhring-guide page

Guhring std.

HR 500 S for blind holes

carbide/k10 4.00-20.00

HR 500 D for through holes

carbide/k10 4.00-20.00

High performance reamers

new

new

37

A 749 52 141

740 53 141

~ Din 8090 A 674 54 141

1430 54 141

B

1407 54 141

C 737 54 141

– 743 55 141

Din 8054 – 727 56 141

Reamers

carbide special reamers

For the production of a hole with tolerance H7 in a connecting rod

and cap we have developed a carbide tipped expanding machine

reamer (left in the picture) offering the possibility of correcting the

diameter.

This special reamer can be corrected within the range up to 0.03

mm by adjusting the tapered screw, generally the correction is

carried out after 3000 connecting rods.

Guhring will willingly produce a special reamer for your specific

machining task. For enquiries or orders please complete the

questionnaire on page 170.

Standard Form Tool illustration Tool material/carbide grade

Surfacefinish

Ø-range Guhringno.

Standard rangepage

Guhring-guide page

Guhring std. carbide/k10 8.00-20.00

carbide/k10 8.00-40.00

Expanding machine reamers

Machine reamers

carbide/k10 4.00-14.00

carbide/k10 3.00-14.00

with highly unequal flute spacingcarbide/k10 3.00-16.00

carbide/k10 4.00-15.50

Guhring std. carbide/k10 7.00-38.00

Stepped machine reamers

carbide/k10 30.00-75.00

Shell reamers

38

A A B A B – C A – A B A B A B – A B A –

1685 1686 674 717 718 719 720 727 737 740 743 749 1407 1408 1409 1410 1411 1427 1428 1429 1430 1449

8090 8050 8050 8051 8051 8054 8090 8090 8093 8093 8094 8094 8093 8093 8090

42 43 54 50 50 51 51 56 54 53 55 52 54 48 48 49 49 44 48 48 54 46

Reamers

compass

Reaming recommendations for carbide reamersBlind hole or through holeStraight-fluted reamers are generally applied in blind holes as they, due to their cutting edge geometry, evacuate the chips from the hole against the direction of the feed. Spiral reamers with external coolant are preferred for the application in through holes because the spiral evacuates the chips from the hole in direction of the feed.

interrupted holesSpiral reamers are preferred for the application in interrupted holes because the cutting edge geometry, in comparison to straight-fluted tools, possesses a lesser tendency of grabbing on the oblique hole. If the oblique hole is > 0.25 x D, spiral reamers can also be applied in blind holes.

Tool material/carbide grade carbide/k10

Form

Surface finish

Guhring no.

DIN G.std. G.std. G.std. G.std. G.std. G.std. G.std.

Std. range and technical data page

Surface finish: bright TiAlN

optimally suited

optimally suited,if sufficient space at bottom of hole

limited suited

Material Hole type Stock removal allowance

High-alloyed and hardened steels< 52 HRC,cast materials such as GG10/GG20/GGG40/GGG50

Through hole

standard

large (0.5-0.6 mm)

interrupted holes

Blind hole

standard

large (0.5-0.6 mm)

interrupted holes

Soft non-ferrous metals, i. e. aluminium, brass etc.

Through hole

standard

large (0.5-0.6 mm)

interrupted holes

Blind holestandard

interrupted holes

39

A A B A B – C A – A B A B A B – A B A –

1685 1686 674 717 718 719 720 727 737 740 743 749 1407 1408 1409 1410 1411 1427 1428 1429 1430 1449

8090 8050 8050 8051 8051 8054 8090 8090 8093 8093 8094 8094 8093 8093 8090

42 43 54 50 50 51 51 56 54 53 55 52 54 48 48 49 49 44 48 48 54 46

Reamers

Stock removal allowance of the pre-drilled holeIn the event of the stock removal allowance of the pre-drilled hole exceeding the standard stock removal al-lowance of 0.2 to 0.3 mm for reaming, a quick spiral reamer or a machine bridge reamer should be applied. It is possible to machine a considerably larger stock removal allowance with these tools.

Expanding reamersExpanding reamers can only be expanded. Subsequently, if the resulting measurement is too large it is not possible to turn the screw back as the pre-tension of the tool would be lost. In most cases this leads to tool breakage. If the pre-tension has been taken from the tool, it requires re-adjusting and re-grinding.

Positional accuracy of the hole: Carbide machine bottoming reamers on request.

Tool material/carbide grade carbide/k10

Form

Surface finish

Guhring no.

DIN G.std. G.std. G.std. G.std. G.std. G.std. G.std.

Std. range and technical data page

Surface finish: bright TiAlN

optimally suited

optimally suited,if sufficient space at bottom of hole

limited suited

Material Hole type Stock removal allowance

High-alloyed and hardened steels< 52 HRC,cast materials such as GG10/GG20/GGG40/GGG50

Through hole

standard

large (0.5-0.6 mm)

interrupted holes

Blind hole

standard

large (0.5-0.6 mm)

interrupted holes

Soft non-ferrous metals, i. e. aluminium, brass etc.

Through hole

standard

large (0.5-0.6 mm)

interrupted holes

Blind holestandard

interrupted holes

40 Reamers

Solid carbide High-Performance Reamers HR 500

With the two new solid carbide HPC reamers HR 500 D for through holes and HR 500 S for blind holes, Guhring offers two trend-setting solutions for the finish machining of holes, providing a 50-fold production time reduction as well as an increase in tool life and hole quality in compari-son to conventional tools.

faster, more accurate and longer tool life:the new Guhring solid carbide HR 500 D The specially developed, straight flute, geometry is unique with reamers for through holes. It enables extremely high cutting rates also for deep holes. At the same time, the straight-flute geometry combined with the exceptional coolant delivery supports a problem-free chip evacuation ahead of the cutting edge. Subsequently, the excellent reamed surface remains optimally preserved, as chips do not return back within the flutes.

The optimal coolant supply is ensured by longitudinal flutes ground externally on the re-inforced HA shank, their posi-tion exactly synchronised to the spacing of the reamer flute. This version of external cooling has more than one advan-tage over internal cooling via radial coolant ducts: The solid portion is considerably more rigid and a flow restriction is not created through eroded or sintered cooling ducts. In addition, chips cannot become lodged - with this solution non existent - exit holes of the coolant ducts. Furthermore, the optimal coolant delivery is unconditionally maintained even with re-ground tools. By the way, the user need not fear a negative influence on the clamping in hydraulic or shrink fit chucks due to the oil grooves. The remaining bea-ring surface is more than sufficient for a secure clamping.

The results of fundamental research confirm extensive tests in Guhring’s R&D department and above all applications in the field. Subsequently, Guhring’s new solid carbide HPC reamer achieves sensational results in the reaming of a 65 mm deep through hole with a 4.485 mm diameter – a rea-ming depth of over 14 x D – in steel valve blocks (9S20K). The main machining time was reduced from 31 seconds to an unbelievable 1.1 seconds per hole! In detail, the rates improved as follows: The cutting speed increased from 18 m/min to 120 m/min, the feed rate from 0.12 mm/rev. to 0.4 mm/rev. and tool life from 15 m to 60 m in comparison to the tool applied previously. The concentricity achieved is also of an exceptional value below 4 µm.

Confirmation of the optimal coolant delivery to the cutting edge: CFD (Computational Fluid Dynamics) analysis of the coolant flow rate Confirmation of the optimal coolant delivery to the cutting edge: CFD (Computational Fluid Dynamics) analysis of the coolant flow rate Confirmation of the optimal coolant delivery to the cutting edge:

of Guhring’s new solid carbide HPC reamer HR 500 D.

Without loss to the cutting edge:Despite the high speed and the associated extreme centrifugal forces, Without loss to the cutting edge:Despite the high speed and the associated extreme centrifugal forces, Without loss to the cutting edge:

the coolant flows more or less without loss along the tool neck to the Despite the high speed and the associated extreme centrifugal forces, the coolant flows more or less without loss along the tool neck to the Despite the high speed and the associated extreme centrifugal forces,

cutting edge and in the hole. Only when it hits the workpiece, minimal the coolant flows more or less without loss along the tool neck to the cutting edge and in the hole. Only when it hits the workpiece, minimal the coolant flows more or less without loss along the tool neck to the

lateral loss occurs.

Flow rate in m/s

41Reamers

500 S was 250 m/min., the feed rate reached 1.0 mm/rev.. The surface quality achieved with those extremely high cutting rates was between Rz = 1.5 to Rz = 3.5 over a tool life of 45 m.

On a level with cermet but without its disadvantages:Guhring’s new solid carbide HPc reamersThe performance level of both new Guhring solid carbide HPC reamers HR 500 D and HR 500 S could so far only be achieved with cermet tools and had to be acquired with several disadvantages. Cermet reamers are only suitable for the machining of few materials, whilst solid carbide reamers can be applied in close to all materials including soft and stainless steels. Machining with interrupted cut or non-rigid machining conditions are not possible at all with cermet tools but with solid carbide in most cases this is not a problem. In addition, generally cermet reamers are com-paratively more expensive.

The user gains multiple benefits with the new Guhring HR reamer:• extremely high cutting rates,• considerable time saving and therefore cost saving in

the production,• broad range of application• a standard program with favourable prices as well as

short delivery times• intermediate dimensions, that can be produced quickly

and cost-effectively at any time.

Clear performance increase in the machining of through holes:In comparison to previously applied reamer (values in diagram set to Clear performance increase in the machining of through holes:In comparison to previously applied reamer (values in diagram set to Clear performance increase in the machining of through holes:

index 100), Guhring’s solid carbide HPC reamer HR 500 D for through In comparison to previously applied reamer (values in diagram set to index 100), Guhring’s solid carbide HPC reamer HR 500 D for through In comparison to previously applied reamer (values in diagram set to

holes achieves considerably higher values and a 28 fold time saving!index 100), Guhring’s solid carbide HPC reamer HR 500 D for through holes achieves considerably higher values and a 28 fold time saving!index 100), Guhring’s solid carbide HPC reamer HR 500 D for through

Unbelievable performance display:HR 500 S achieves cutting speeds of 250 m/min. and feed rates of > 10 m/min. in steelIn contrast to the solid carbide HPC reamer HR 500 D, the HR 500 S reamer possesses internal cooling via a central coolant duct. Its especially large cross-section ensures the optimal delivery of the coolant to the cutting edge of the tool. The straight-fluted tool geometry combined with the outstanding coolant supply again ensure the safe evacua-tion of the optimally formed chips.

The high efficiency of Guhring’s solid carbide HPC rea-mer HR 500 S for the machining of blind holes underpin numerous machining examples, such as the reaming of a hole with 8.0 mm diameter and a depth of 30 mm in alloyed heat treatable steel (42CrMo4). For the machining of blind holes, cooling with soluble oil with a pressure of 40 bar can reduce the essential machine time per hole 50 fold! The cutting speed of Guhring’s solid carbide HPC reamer HR

Unbelievable but true:The efficiency of Guhring’s new solid carbide HPC reamer HR 500 S in comparison to a competitors tool, its performance values illustrated in The efficiency of Guhring’s new solid carbide HPC reamer HR 500 S in comparison to a competitors tool, its performance values illustrated in The efficiency of Guhring’s new solid carbide HPC reamer HR 500 S in

the diagram with the index 100.

Performance comparison

Perf

orm

ance

in p

erce

nt

(%)

Cutting speed Feed rate Tool life Time saving

New Guhring solid carbide HPC reamer HR 500 DPreviously applied reamer (Index 100)

Performance comparison

Perf

orm

ance

in p

erce

nt

(%)

Cutting speed Feed rate Time saving

New Guhring solid carbide HPC reamerHR 500 S vc = 250 m/min fu = 1.0 mm/rev.

Competition reamer vc = 30 m/min fu = 0.2 mm/rev.(Index 100)

42

39

166

1685

140

d2

l 1d

1

l 4

l2

Reamers

Standard range and technical data

Solid carbide HPc reamers HR 500 SProduct information

• for the machining of blind holes• with axial coolant duct• right-hand cutting• extremely unequal flute spacing• straight-fluted• straight shank tolerance h6 for hydraulic or shrink fit chucks

The solid carbide HPC reamer HR 500 S operates with highest cutting rates (see GuhringGuide page 140) and produces extremely high-quali-ty holes. Therefore, it often enables considerable savings in the process costs. In addition, it provides very high process reliability.

Tool material/carbide grade Solid carbide

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance hole tolerance zone H7

Intermediate sizes see additional charges

TiAlN

Nom.-Ød1

Shank-Ød2 h6

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

4,00 4,00 68 40 12 4 78.005,00 6,00 76 40 12 4 80.006,00 6,00 76 40 12 4 83.007,00 8,00 101 65 16 6 90.008,00 8,00 101 65 16 6 88.009,00 10,00 101 61 19 6 102.00

10,00 10,00 101 61 19 6 126.0011,00 12,00 130 85 19 6 163.0012,00 12,00 130 85 19 6 168.0013,00 14,00 130 85 22 6 180.0014,00 14,00 130 85 22 6 186.0015,00 16,00 150 102 22 6 186.0016,00 16,00 150 102 22 6 192.0017,00 18,00 150 102 25 6 192.0018,00 18,00 150 102 25 6 222.0019,00 20,00 150 100 25 6 222.0020,00 20,00 150 100 25 6 238.00

Guhringguide (cutting rates) page

new

43

39

166

1686

140

d2

l 1d

1

l 4

l2

Reamers

Solid carbide HPc reamers HR 500 DProduct information

• for the machining of through holes• with longitudinal flutes on the

shank for coolant supply• right-hand cutting• extremely unequal flute spacing• straight-fluted• straight shank tolerance h6 for hydraulic or shrink fit chucks

The solid carbide HPC reamer HR 500 S operates with highest cutting rates (see GuhringGuide page 140) and produces extremely high-quali-ty holes. Therefore, it often enables considerable savings in the process costs. In addition, it provides very high process reliability. The special coolant supply ensures an optimal chip evacuation and an optimal coo-ling.

Tool material/carbide grade Solid carbide

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance hole tolerance zone H7

Intermediate sizes see additional charges

Nom.-Ød1

Shank-Ød2 h6

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

4.00 4.00 68 40 12 4 78.005.00 6.00 76 40 12 4 80.006.00 6.00 76 40 12 4 83.007.00 8.00 101 65 16 6 90.008.00 8.00 101 65 16 6 88.009.00 10.00 101 61 19 6 102.00

10.00 10.00 101 61 19 6 126.0011.00 12.00 130 85 19 6 163.0012.00 12.00 130 85 19 6 168.0013.00 14.00 130 85 22 6 180.0014.00 14.00 130 85 22 6 186.0015.00 16.00 150 102 22 6 186.0016.00 16.00 150 102 22 6 192.0017.00 18.00 150 102 25 6 192.0018.00 18.00 150 102 25 6 222.0019.00 20.00 150 100 25 6 222.0020.00 20.00 150 100 25 6 238.00

Guhringguide (cutting rates) page

new

44

39

120

1427

140

d2

l1

d1

l 4

l2

Reamers

Standard range and technical data

carbide nc machine chucking reamersProduct information

• right hand cutting• left hand spiral flutes

NC machine chucking reamers are similar to DIN 8093 with straight shank (h6) for standardised tool clamping in hydraulic or shrink fit chucks. The combination of NC machine chucking reamer and hydraulic, high precision clamping or shrink fit chuck respectively offers highest concentricity and process reliability for the production of holes to required tolerances.

Tool material/carbide grade carbide/k10

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance from Ø 0.98 to 5.03 mm: 0.000/+0.004from Ø 5.97 - 12.05 mm: 0.000/+0.005

bright

Nom.-Ød1

Shank-Ød2 h6

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

0.98 4.00 50 22 6 3 46.000.99 4.00 50 22 6 3 46.001.00 4.00 50 22 6 3 40.001.01 4.00 50 22 6 3 46.001.02 4.00 50 22 6 3 46.001.03 4.00 50 22 9 3 46.001.48 4.00 50 22 9 3 46.501.49 4.00 50 22 9 3 46.501.50 4.00 50 22 9 3 40.501.51 4.00 50 22 9 3 46.501.52 4.00 50 22 9 3 46.501.53 4.00 50 22 9 3 46.501.98 4.00 50 22 12 4 46.501.99 4.00 50 22 12 4 46.502.00 4.00 50 22 12 4 40.502.01 4.00 50 22 12 4 46.502.02 4.00 50 22 12 4 46.502.03 4.00 50 22 12 4 46.502.48 4.00 60 32 16 4 46.502.49 4.00 60 32 16 4 46.502.50 4.00 60 32 16 4 40.502.51 4.00 60 32 16 4 46.502.52 4.00 60 32 16 4 46.502.53 4.00 60 32 16 4 46.502.97 4.00 64 36 17 6 48.002.98 4.00 64 36 17 6 48.002.99 4.00 64 36 17 6 48.003.00 4.00 64 36 17 6 42.503.01 4.00 64 36 17 6 48.003.02 4.00 64 36 17 6 48.003.03 4.00 64 36 17 6 48.003.97 4.00 77 45 21 6 57.003.98 4.00 77 45 21 6 57.003.99 4.00 77 45 21 6 57.004.00 4.00 77 45 21 6 50.004.01 4.00 77 45 21 6 57.004.02 4.00 77 45 21 6 57.004.03 4.00 77 45 21 6 57.004.97 6.00 93 59 26 6 62.00

Guhringguide (cutting rates) page

45

120

1427

140

Reamers

carbide nc machine chucking reamers (continued)

Perfect combination

Our NC machine chucking reamers are optimally suited to the appli-

cation in hydraulic or shrink fit chucks from our GM 300-program.

This combination provides the highest concentricity and process

reliability for the production of holes to required tolerances. In ad-

dition, we also provide the efficient inductive shrink fit systems

GISS 3000 with integrated length pre-adjustment and GISS 2000

for clamping the tools in our shrink fit chucks.

Tool material/carbide grade carbide/k10

Surface finish

Discount group

Guhring no.

Nom.-Ød1

Shank-Ød2 h6

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

4.98 6.00 93 59 26 6 62.004.99 6.00 93 59 26 6 62.005.00 6.00 93 59 26 6 56.005.01 6.00 93 59 26 6 62.005.02 6.00 93 59 26 6 62.005.03 6.00 93 59 26 6 62.005.97 6.00 93 57 26 6 67.005.98 6.00 93 57 26 6 67.005.99 6.00 93 57 26 6 67.006.00 6.00 93 57 26 6 61.006.01 6.00 93 57 26 6 67.006.02 6.00 93 57 26 6 67.006.03 6.00 93 57 26 6 67.007.00 8.00 109 69 31 6 62.007.97 8.00 117 75 33 6 85.007.98 8.00 117 75 33 6 85.007.99 8.00 117 75 33 6 85.008.00 8.00 117 75 33 6 78.008.01 8.00 117 75 33 6 85.008.02 8.00 117 75 33 6 85.008.03 8.00 117 75 33 6 85.008.04 8.00 117 75 33 6 85.009.00 10.00 125 81 36 6 85.009.97 10.00 133 87 38 6 98.009.98 10.00 133 87 38 6 98.009.99 10.00 133 87 38 6 98.00

10.00 10.00 133 87 38 6 92.0010.01 10.00 133 87 38 6 98.0010.02 10.00 133 87 38 6 98.0010.03 10.00 133 87 38 6 98.0010.04 10.00 133 87 38 6 99.0010.05 10.00 133 87 38 6 98.0011.97 12.00 151 105 44 6 118.0011.98 12.00 151 105 44 6 118.0011.99 12.00 151 105 44 6 118.0012.00 12.00 151 105 44 6 112.0012.01 12.00 151 105 44 6 118.0012.02 12.00 151 105 44 6 118.0012.03 12.00 151 105 44 6 118.0012.04 12.00 151 105 44 6 118.0012.05 12.00 151 105 44 6 118.00

Guhringguide (cutting rates) page

46

39

120

1449

140

d2

l1

d1

l 4

l2

Reamers

Standard range and technical data

carbide nc machine chucking reamersProduct information

• right hand cutting• left hand spiral flutes

NC machine chucking reamers are similar to DIN 8093 with straight shank (h6) for standardised tool clamping in hydraulic or shrink fit chucks. The combination of NC machine chucking reamer and hydraulic, high precision clamping or shrink fit chuck respectively offers highest concentricity and process reliability for the production of holes to required tolerances.

Tool material/carbide grade carbide/k10

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance to Din 1420, for hole tolerance zone H7

bright

Nom.-Ød1

Shank-Ød2 h6

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

3.00 4.00 64 36 17 6 39.003.10 4.00 68 40 18 6 42.003.20 4.00 68 40 18 6 42.003.30 4.00 68 40 18 6 42.003.40 4.00 74 46 20 6 42.003.50 4.00 74 46 20 6 40.503.60 4.00 74 46 20 6 44.003.70 4.00 74 46 20 6 44.003.80 4.00 77 45 21 6 44.003.90 4.00 77 45 21 6 44.004.00 4.00 77 45 21 6 41.504.10 6.00 82 50 23 6 44.004.20 6.00 82 50 23 6 44.004.30 6.00 82 50 23 6 44.004.40 6.00 82 50 23 6 44.004.50 6.00 82 50 23 6 43.004.60 6.00 82 50 23 6 46.504.70 6.00 82 50 23 6 46.504.80 6.00 93 59 26 6 46.504.90 6.00 93 59 26 6 46.505.00 6.00 93 59 26 6 51.005.10 6.00 93 59 26 6 55.005.20 6.00 93 59 26 6 55.005.30 6.00 93 59 26 6 55.005.40 6.00 93 57 26 6 55.005.50 6.00 93 57 26 6 54.005.60 6.00 93 57 26 6 58.005.70 6.00 93 57 26 6 58.005.80 6.00 93 57 26 6 58.005.90 6.00 93 57 26 6 58.006.00 6.00 93 57 26 6 56.006.10 8.00 101 63 28 6 60.006.20 8.00 101 63 28 6 60.006.30 8.00 101 63 28 6 60.006.40 8.00 101 63 28 6 60.006.50 8.00 101 63 28 6 59.006.60 8.00 101 63 28 6 63.006.70 8.00 101 63 28 6 63.006.80 8.00 109 69 31 6 63.00

Guhringguide (cutting rates) page

47

120

1449

140

Reamers

carbide nc machine chucking reamers (continued)Tool material/carbide grade carbide/k10

Surface finish

Discount group

Guhring no.

Nom.-Ød1

Shank-Ød2 h6

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

6.90 8.00 109 69 31 6 63.007.00 8.00 109 69 31 6 58.007.10 8.00 109 69 31 6 61.007.20 8.00 109 69 31 6 61.007.30 8.00 109 69 31 6 61.007.40 8.00 109 69 31 6 61.007.50 8.00 109 69 31 6 60.007.60 8.00 109 69 31 6 64.007.70 8.00 117 75 33 6 64.007.80 8.00 117 75 33 6 64.007.90 8.00 117 75 33 6 64.008.00 8.00 117 75 33 6 71.008.10 10.00 117 75 33 6 77.008.20 10.00 117 75 33 6 77.008.30 10.00 117 75 33 6 77.008.40 10.00 117 75 33 6 77.008.50 10.00 117 75 33 6 75.008.60 10.00 117 75 33 6 80.008.70 10.00 125 81 36 6 80.008.80 10.00 125 81 36 6 80.008.90 10.00 125 81 36 6 80.009.00 10.00 125 81 36 6 75.009.10 10.00 125 81 36 6 80.009.20 10.00 125 81 36 6 80.009.30 10.00 125 81 36 6 80.009.40 10.00 125 81 36 6 80.009.50 10.00 125 81 36 6 78.009.60 10.00 125 81 36 6 84.009.70 10.00 133 87 38 6 84.009.80 10.00 133 87 38 6 84.009.90 10.00 133 87 38 6 84.00

10.00 10.00 133 87 38 6 85.0010.10 10.00 133 87 38 6 90.0010.20 10.00 133 87 38 6 90.0010.30 10.00 133 87 38 6 90.0010.40 10.00 133 87 38 6 90.0010.50 10.00 133 87 38 6 87.0010.60 10.00 133 87 38 6 95.0010.70 10.00 142 96 41 6 95.0010.80 10.00 142 96 41 6 95.0010.90 10.00 142 96 41 6 95.0011.00 10.00 142 96 41 6 95.0011.10 10.00 142 96 41 6 101.0011.20 10.00 142 96 41 6 101.0011.30 10.00 142 96 41 6 101.0011.40 10.00 142 96 41 6 101.0011.50 10.00 142 96 41 6 97.0011.60 10.00 142 96 41 6 105.0011.70 10.00 142 96 41 6 105.0011.80 10.00 142 96 41 6 105.0011.90 12.00 151 105 44 6 105.0012.00 12.00 151 105 44 6 103.00

Guhringguide (cutting rates) page

48

39 39 39 39

120 120 120 120

1408 1428 1409 1429

A A B B

140 141 141 141

d2

l1

d1

l 4

l2

Reamers

Standard range and technical data

carbide machine chucking reamers

bright TiAlN

Product information

• right hand cutting• with highly unequal flute spacing• form A: straight-fluted

form B: left hand spiral flutes• ≤ Ø 9.50 mm: solid carbide

> Ø 9.50 mm: carbide tipped• ≤ Ø 9.50 mm with external centres

on both ends> Ø 9.50 mm with internal centres on both ends

Tool material/carbide grade carbide/k10

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN ~ Din 8093

≥ Ø 10 allocation of carbide inserts and shank design acc. to Guhring std.

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

Shank-Ød2 h9

≥ 10 h6

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

1.00 1.00 34 – 5.5 3 33.00 33.001.20 1.20 38 – 7.5 3 37.00 37.501.40 1.40 40 – 8 3 32.00 35.001.50 1.50 40 – 8 3 29.50 29.501.60 1.60 43 – 9 3 33.00 32.501.80 1.80 46 – 9 4 39.00 40.002.00 2.00 49 – 11 4 29.00 46.00 29.00 46.002.20 2.20 53 – 12 4 35.00 52.00 39.50 57.002.50 2.50 57 – 14 4 31.50 48.50 32.00 49.002.80 2.80 61 – 15 4 36.00 53.00 35.50 53.003.00 3.00 61 30 15 6 36.00 53.00 36.00 53.003.20 3.20 65 33 16 6 42.00 59.00 42.00 59.003.50 3.50 70 33 18 6 40.50 58.00 40.00 58.004.00 4.00 75 44 19 6 42.00 59.00 41.50 59.004.50 4.50 80 46 21 6 50.00 68.00 48.00 66.005.00 5.00 86 53 23 6 52.00 69.00 49.50 67.005.50 5.60 93 56 26 6 63.00 80.00 62.00 79.006.00 5.60 93 56 26 6 61.00 78.00 59.00 76.006.50 6.30 101 63 28 6 70.00 95.00 70.00 95.007.00 7.10 109 69 31 6 71.00 96.00 71.00 96.007.50 7.10 109 69 31 6 78.00 103.00 78.00 103.008.00 8.00 117 75 33 6 76.00 101.00 76.00 101.008.50 8.00 117 75 33 6 85.00 110.00 84.00 108.009.00 9.00 125 81 36 6 87.00 112.00 87.00 112.009.50 9.00 125 81 36 6 101.00 125.00 101.00 125.00

10.00 10.00 133 87 38 6 62.00 87.00 62.00 87.0010.50 10.00 133 87 38 6 71.00 96.00 71.00 96.0011.00 10.00 142 96 41 6 78.00 103.00 78.00 103.0012.00 10.00 151 105 44 6 78.00 103.00 78.00 103.0013.00 10.00 151 105 44 6 80.00 105.00 80.00 105.0014.00 12.00 160 110 47 6 86.00 111.00 86.00 111.0015.00 12.00 162 112 50 6 93.00 118.00 93.00 118.0016.00 12.00 170 120 52 6 93.00 118.00 93.00 118.0017.00 14.00 175 123 54 6 120.00 147.00 120.00 147.0018.00 14.00 182 130 56 6 114.00 164.00 110.00 159.0019.00 16.00 189 131 58 6 142.00 192.00 142.00 192.0020.00 16.00 195 137 60 6 128.00 177.00 128.00 177.00

Guhringguide (cutting rates) page

49

39 39

120 120

1410 1411

A B

141 141

l1

d1

l4

l2

Reamers

carbide machine chucking reamersProduct information

• right hand cutting• with highly unequal flute spacing• form A: straight-fluted

form B: left hand spiral flutes• ≤ Ø 9.50 mm: solid carbide

> Ø 9.50 mm: carbide tipped• ≤ Ø 9.50 mm with external

centre on cutting end, with internal centre on shank end> Ø 9.50 mm with internal centres on both ends

Tool material/carbide grade carbide/k10

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN ~ Din 8094

allocation of carbide in-serts acc. to Guhring std.

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

Morsetaper

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

5.00 1 133 67.5 23 6 77.00 77.006.00 1 138 72.5 26 6 78.00 78.007.00 1 150 84.5 31 6 89.00 95.008.00 1 156 90.5 33 6 87.00 90.009.00 1 162 96.5 36 6 111.00 111.00

10.00 1 168 102.5 38 6 70.00 70.0011.00 1 175 109.5 41 6 76.00 75.0012.00 1 182 116.5 44 6 71.00 70.0013.00 1 182 116.5 44 6 77.00 76.0014.00 1 189 123.5 47 6 82.00 81.0015.00 2 204 124 50 6 90.00 90.0016.00 2 210 130 52 6 95.00 94.0017.00 2 214 134 54 6 99.00 102.0018.00 2 219 139 56 6 96.00 96.0019.00 2 223 143 58 6 115.00 114.0020.00 2 228 148 60 6 107.00 106.0021.00 2 228 148 60 6 123.00 145.0022.00 2 237 157 64 6 123.00 122.0023.00 2 241 161 66 6 154.00 153.0024.00 3 268 169 68 8 154.00 153.0025.00 3 268 169 68 8 154.00 153.0026.00 3 273 174 70 8 168.00 167.0027.00 3 273 174 70 8 218.00 198.0028.00 3 277 178 71 8 197.00 195.0030.00 3 281 182 73 8 202.00 198.0032.00 4 317 193 77 8 161.00 218.0034.00 4 321 197 78 8 254.00 250.0035.00 4 321 197 78 8 258.00 256.0036.00 4 325 201 79 8 284.00 282.0038.00 4 329 205 81 8 294.00 282.0040.00 4 329 205 81 8 308.00 306.00

Guhringguide (cutting rates) page

50

38 38

120 120

717 718

A B

141 141

d2

l1d

1

l 4

l2

Reamers

Standard range and technical data

carbide machine chucking reamersProduct information

• right hand cutting• with highly unequal flute spacing• form A: straight-fluted

form B: left hand spiral flutes• ≤ Ø 9.50 mm: solid carbide

> Ø 9.50 mm: carbide tipped• ≤ Ø 9.50 mm with external cen-

tres on both ends> Ø 9.50 mm with internal cen-tres on both ends

Tool material/carbide grade carbide/k10

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN ~ Din 8050

≥ Ø 10 allocation of carbide inserts and shank design acc. to Guhring std.

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

Shank-Ød2 h9

≥ 10 h6

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

5.00 5.00 86 52 12 6 42.50 48.006.00 5.60 93 57 12 6 42.50 48.007.00 7.10 109 69 16 6 42.50 61.008.00 8.00 117 75 16 6 42.50 53.009.00 9.00 125 81 19 6 48.00 66.00

10.00 10.00 133 87 12 6 53.00 59.0011.00 10.00 142 96 12 6 72.00 82.0012.00 10.00 151 105 12 6 76.00 83.0013.00 10.00 151 105 12 6 79.00 89.0014.00 12.00 160 110 16 6 75.00 82.0015.00 12.00 162 112 16 6 81.00 90.0016.00 12.00 170 120 19 6 87.00 97.0017.00 14.00 175 123 19 6 106.0018.00 14.00 182 130 19 6 105.00 116.0019.00 16.00 189 131 19 6 112.0020.00 16.00 195 137 19 6 107.00 120.00

Guhringguide (cutting rates) page

bright

51

38 38

120 120

719 720

A B

141 141

l1

d1

l4

l2

Reamers

carbide machine chucking reamersProduct information

• right hand cutting• with highly unequal flute spacing• form A: straight-fluted

form B: left hand spiral flutes• ≤ Ø 9.50 mm: solid carbide

> Ø 9.50 mm: carbide tipped• ≤ Ø 9.50 mm with external centre

on cutting end, with internal centre on shank end> Ø 9.50 mm with internal centres on both ends

Tool material/carbide grade carbide/k10

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN ~ Din 8051

allocation of carbide in-serts acc. to Guhring std.

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

Morsetaper

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

5.00 1 133 67.5 12 6 63.006.00 1 138 72.5 12 6 62.00 69.007.00 1 150 84.5 16 6 66.008.00 1 156 90.5 16 6 61.00 74.009.00 1 162 96.5 19 6 66.00 74.00

10.00 1 168 102.5 12 6 56.00 62.0011.00 1 175 109.5 12 6 64.00 72.0012.00 1 182 116.5 12 6 56.00 62.0013.00 1 182 116.5 12 6 61.00 70.0014.00 1 189 123.5 16 6 61.00 68.0015.00 2 204 124 16 6 69.00 76.0016.00 2 210 130 19 6 70.00 80.0017.00 2 214 134 19 6 78.00 85.0018.00 2 219 139 19 6 76.00 82.0019.00 2 223 143 19 6 79.0020.00 2 228 148 19 6 77.00 84.0021.00 2 232 152 22 6 90.0022.00 2 237 157 22 6 85.00 94.0023.00 2 241 161 22 6 97.0024.00 3 268 169 22 8 112.00 122.0025.00 3 268 169 22 8 112.00 122.0026.00 3 273 174 22 8 120.00 132.0027.00 3 277 178 25 8 149.0028.00 3 277 178 25 8 137.0030.00 3 281 182 25 8 141.00 154.0032.00 4 317 193 25 8 154.00 167.0034.00 4 321 197 25 8 184.0035.00 4 321 197 25 8 184.0036.00 4 325 201 25 8 202.0038.00 4 329 205 25 8 202.00 278.0040.00 4 329 205 25 8 210.00

Guhringguide (cutting rates) page

52

39

120

749

A

141

d2

l1d

1

l 4

l2

Reamers

Standard range and technical data

carbide expanding machine reamers

carbide special reamersWe have developed a carbide special reamer (on the right in the

picture) for the machining of brass and hardened steel (HRC 68)

valve guides.

The extremely long tool is TiN-coated and achieves optimal

machining qualities combined with a long tool life as well as high

cutting rates.

Guhring will willingly also produce a special reamer for your

specific machining task. For enquiries or orders please complete

the questionnaire on page 170.

Product information

• right hand cutting• straight-fluted• carbide tipped• with internal centres on both ends

Expanding machine reamers similar to DIN 8050 have an adjustment range of approx. 0.03 mm via tapered screw setting.

Tool material/carbide grade carbide/k10

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

Shank-Ød2 h6

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

8.00 8.00 117 75 12 4 70.009.00 10.00 125 81 12 6 79.00

10.00 10.00 133 87 12 6 76.0011.00 10.00 142 96 12 6 82.0012.00 10.00 151 105 12 6 79.0013.00 10.00 151 105 12 6 105.0014.00 12.00 160 110 16 6 106.0015.00 12.00 162 112 16 6 122.0016.00 12.00 170 120 19 6 127.0018.00 14.00 182 130 19 6 137.0020.00 16.00 195 137 19 6 155.00

Guhringguide (cutting rates) page

bright

53

39

120

740

A

141

l1

d1

l4

l2

Reamers

carbide expanding machine reamersProduct information

• right hand cutting• straight-fluted• carbide tipped• with internal centres on both ends

Expanding machine reamers similar to DIN 8051 have an adjustment range of approx. 0.03 mm via tapered screw setting.

Tool material/carbide grade carbide/k10

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

Morsetaper

Totallength l1

Effectivelength l2

Cutting edgelength l4

No. offlutes Price per unit (€)

8.00 1 156 90.5 12 4 86.009.00 1 162 96.5 12 6 90.00

10.00 1 168 102.5 12 6 89.0011.00 1 175 109.5 12 6 97.0012.00 1 182 116.5 12 6 89.0013.00 1 182 116.5 12 6 114.0014.00 1 189 123.5 16 6 107.0015.00 2 204 124 16 6 131.0016.00 2 210 130 19 6 133.0017.00 2 214 134 19 6 140.0018.00 2 219 139 19 6 137.0019.00 2 223 143 19 6 144.0020.00 2 228 148 19 6 138.0022.00 2 237 157 22 6 145.0024.00 3 268 169 22 8 174.0025.00 3 268 169 22 6 174.0028.00 3 277 178 25 6 206.0030.00 3 281 182 25 6 210.0032.00 4 317 193 25 6 242.0034.00 4 321 197 25 8 294.0035.00 4 321 197 25 8 294.0036.00 4 325 201 25 8 272.0038.00 4 329 205 25 8 308.0040.00 4 329 205 25 8 280.00

Guhringguide (cutting rates) page

54

38 39 39 39

120 120 120 120

674 1430 1407 737

A A B C

141 141 141 141

d2

d1

l 4

l1

Reamers

Standard range and technical data

carbide machine reamers

bright TiAlN

Product information

• right hand cutting• form B: with highly unequal flute

spacing• form A: straight-fluted

form B: with left hand spiral flutesform C: with right hand spiral flutes

• ≤ Ø 9.50 mm: solid carbide> Ø 9.50 mm: carbide tipped

• ≤ Ø 9.50 mm with external centres on both ends > Ø 9,50 mm with internal centres on both ends

Tool material/carbide grade carbide/k10

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN ~ Din 8090

Schneidplatten-Zuordnung nach Guhring std.

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

Shank-Ød2 h8

Totallength l1

Cutting edgelength l4

No. offlutes Price per unit (€)

3.00 2.50 56 20 6 47.00 40.503.20 2.80 56 20 6 49.003.50 3.00 56 20 6 50.00 42.504.00 3.55 56 20 6 38.00 53.00 44.50 40.004.50 4.00 63 22 6 42.00 58.00 51.00 42.005.00 4.00 63 22 6 45.50 61.00 56.00 45.505.50 5.00 63 22 6 48.50 63.00 59.006.00 5.00 63 22 6 52.00 67.00 59.00 52.006.50 5.00 63 22 6 52.00 67.00 64.007.00 6.30 71 25 6 65.00 87.00 71.00 65.007.50 6.30 71 25 6 83.00 87.00 73.008.00 6.30 71 25 6 74.00 95.00 76.00 74.008.50 6.30 71 25 6 80.00 101.00 75.009.00 8.00 71 25 6 83.00 104.00 86.00 83.009.50 8.00 71 25 6 86.00 111.00 86.00

10.00 8.00 71 25 6 89.00 110.00 90.00 89.0010.50 8.00 71 25 6 96.00 113.00 95.0011.00 10.00 80 28 6 101.00 121.00 110.0011.50 10.00 80 28 6 122.0012.00 10.00 80 28 6 108.00 128.00 127.00 108.0012.50 10.00 80 28 6 120.00 139.0013.50 12.50 90 32 6 132.00 150.00 132.0014.00 12.50 90 32 6 132.00 150.00 156.00 132.0015.50 12.50 90 32 6 202.0016.00 12.50 90 32 6 185.00

Guhringguide (cutting rates) page

55

39

120

743

141

l1

d5

l5

l4

d1

l 3

Reamers

carbide stepped machine reamers

carbide special reamers

Interrupted cutting during the machining of a stepped hole to

close tolerances in a crankcase required a special solution for the

applied reamer.

Therefore, we developed a short, very rigid solid carbide stepped

reamer (in the centre of the picture) with highly unequal flute

spacing and central internal cooling. The reamer achieved a tool

life of 6000 holes with tolerance H7.

Guhring will willingly also produce a special reamer for your spe-

cific machining task. For enquiries or orders please complete the

questionnaire on page 170.

Product information

• right hand cutting• left hand spiral flutes• ≤ Ø 9.50 mm: solid carbide

> Ø 9.50 mm: carbide tipped• ≤ Ø 9.50 mm with external centre

on cutting end, with internal centre on shank end> Ø 9.50 mm with internal centres on both ends

Tool material/carbide grade carbide/k10

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

Morsetaper

Pilot-Ø d5

Totallength l1

Flutelength l3

Cutting edgelength l4

Pilotlength l5

No. offlutes Price per unit (€)

7.00 1 6.92 185 111 27 10 6 175.008.00 1 7.92 205 133 27.5 10 6 175.00

10.00 1 9.90 230 155 28 12 6 183.0012.00 1 11.90 230 155 28 15 6 185.0024.00 3 23.85 285 176 33 15 8 222.0028.00 3 27.85 290 181 33 15 8 262.0032.00 4 31.85 330 193 33 15 8 314.0034.00 4 33.85 335 198 33 15 8 394.0036.00 4 35.85 340 203 33 15 8 400.0038.00 4 37.85 345 208 33 15 8 406.00

Guhringguide (cutting rates) page

56

39

120

727

34

141

d1

l4

l1

Reamers

Standard range and technical data

Product information

• right hand cutting• straight-fluted• carbide tipped• Ø 30.00 mm to Guhring standard

The shell reamers have a taper bore with a taper 1 : 30 and a driving slot to DIN 138.

Tool material/carbide grade carbide/k10

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 8054

Tolerance to Din 1420, for hole tolerance zone H7

Centre –

Nom.-Ød1

Nom.bore-Ø

Totallength l1

Cutting edgelength l4

No. offlutes Price per unit (€)

30.00 13.00 45 30 6 121.0032.00 13.00 45 30 8 141.0034.00 13.00 45 30 8 140.0035.00 13.00 45 30 8 140.0036.00 16.00 50 30 8 155.0037.00 16.00 50 30 8 156.0038.00 16.00 50 30 8 155.0040.00 16.00 50 30 8 155.0042.00 16.00 50 30 8 155.0044.00 16.00 50 30 8 177.0045.00 16.00 50 30 8 177.0048.00 19.00 56 30 10 177.0050.00 19.00 56 30 10 177.0055.00 22.00 63 30 10 195.0058.00 22.00 63 30 10 244.0060.00 22.00 63 30 10 244.0070.00 27.00 71 30 12 298.0075.00 27.00 71 30 12 324.00

Arbors and attachments page

Guhringguide (cutting rates) page

bright

carbide shell reamers

Cermet special reamers

Cer

met

spec

ial

ream

ers

• with h6-shank for tool clamping in hydraulic chucks and shrink fit chucks

• with internal cooling for machining holes to close tolerances

58 Reamers

cermet special reamers

Cermet reamers offer the following advantages for the machining process:

• the high process reliability of cermet reamers

• increased cutting rates and tool life

• close tolerances

• the production of the highest surface qualities

• simple handling, pre-setting is very straightforward.

Guhring produce cermet special reamers that are optimally adapted to the customer‘s specific application.

Several examples are described on the following pages . For enquiries or orders please complete the

questionnaire on page 170.

59Reamers

cermet special reamers

Cermet special reamers are available especially for

clamping in hydraulic chucks and shrink fit chucks. Naturally,

we adapt the tool geometry to your specific application

task: the number of flutes, the effective length, the required

tolerances - all parameters are variable.

cermet special reamer withinternal cooling also available for minimal lubrication

Guhring have developed a cermet special reamer with

internal cooling (centre of picture) for the machining of

holes in gearbox components to a G6 tolerance. The actual

workpiece, a steel fabrication is a fork type construction

and was highly challenging. The reamer had to machine

through a punched hole in sheet metal, then through solid

material and then again through sheet metal to produce a

hole tolerance of 9 µ.

Our solution is a very rigid, multi-fluted cermet bottoming

reamer with internal cooling and cutting over centre. The

tool achieves a tool life of 6000 holes, a cutting speed of

177 m/min and a feed rate of 1955 mm/min. The result is a

quick and economical machining cycle.

60 Reamers

compass and

The following table contains a brief summary of the suitability of cermet reamers as well as the

recommended cutting rates in relation to the material to be machined. They are approximate values only and

can vary from application to application.

PcD finishing reamers

As well as the cermet, carbide and HSS-E special

reamers already introduced in this catalogue we

can provide diamond-tipped finishing reamers as

a modular tooling system for the pre- and finish

machining of valve seats.

In addition, information regarding PCD special

reamers for your specific machining task can be

found from page 167.

Feed rates for the machining with cermet in mm/rev.

Materials well suited for the machining with cermet

Cutting speedsfor reaming with cermet

Diameter< 7 mm

Diameter7-16 mm

Diameter> 16 mm

Structural steels, i.e. St33, St50-2 100-180 m/min

Case hardened steels, i.e. C10, 16MnCr5 80-140 m/min

Free-cutting steels, i.e.11SMnPb30, 9SMn36 100-180 m/min 0.3-0.4 0.6-0.8 0.8-1.4

Heat-treatable steels, i.e. 42CrMo4, 28Cr4 80-140 m/min

Grey cast iron GGG, i.e. GGG40, GGG60 100-180 m/min

GUHRINGGUIDE

taper reamerstaper reamerst

Tap

er r

eam

ers

• Hand taper reamers from page 64

• Machine taper reamers from page 67

62

Din 9 A HSS 428 64 –

B HSS 429 64 –

C

HSS 446 65 –

Din204 A

HSS 443 65 –

B

HSS 445 65 –

B

HSS 1433 66 –

Din2179 – HSS-E 410 67 143

Din2180 – HSS-E 411 68 143

Reamers

table of contents

Special taper reamers

We also produce special taper reamers to customer

specifications, i.e. special reamer with internal

cooling and chip breakers.

Guhring will willingly also produce a special

reamer for your specific machining task.

For enquiries or orders please complete the

questionnaire on page 171.

Hand taper reamers

Machine taper pin reamers

bright

Standard Form Tool illustration Tool material Surfacefinish

Ø-range Guhringno.

Standard rangepage

Guhring-guide page

1.00-50.00

3.00-50.00

Guhring std.

RoughingMK4-MK6

FinishingMK5/MK6

FinishingMK0-MK4

Guhring std.

Finishing

8.00-40.00

1.00-12.00

5.00-50.00

63

HSS-E HSS

– – A B A B C B

410 411 428 429 443 445 446 1433

2179 2180 9 9 204 204

67 68 64 64 65 65 65 66

Reamers

compass

Reaming recommendations for taper reamers

The application of taper reamers on CNC-controlled machines must incorporate a dwell time of two to three

tool rotations at the point of reverse in order to allow a clean conical surface.

When reaming a taper hole it is absolutely necessary to evacuate the chips several times to remove the large

volume of chips created due to the cutting process.

All the tools are also available as machine taper reamers or with different angles of taper as special tools on request.With Guhring no. 443, 445 and 446 the pre-drilled hole must be pre-machined in steps.

Tool material

Form

Surface finish

Guhring no.

DIN G.std. G.std.

Std. range and techn. data page

Surface finish: bright

optimally suited

Materials Hole

Steels with a low tensile strength < 500 N/mm2, non-ferrous metals, plastics,Steels with a me-dium and higher tensile strength < 1000 N/mm2,cast materialsi. e. GG10/GG20/GGG40/GGG50

Straight

Roughing

Finishing

Re-working tapered hole

64

HSS

63 63

105 105

428 429

A B

d3

d1SW

d4

l 1

l 4

l 6

d2

– –

Reamers

Standard range and technical dataStandard range and technical data

HSS hand taper pin reamersProduct information

• right hand cutting• form A: straight-fluted

form B: left hand spiral flutes• with taper 1:50 for the reaming of

holes to suit taper pins • with square to DIN 10• Ø 3.50; 5.50; 6.50; 7.00; 9.00; 13.00 and

14.00 mm to Guhring standard

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 9

Tolerance –

Nom.-Ød1

Shank-Ød2

small Ød3

large Ød4

Totallength l1

Cutting edge

length l4

Flatlength l6

No. offlutes Price per unit (€)

1.00 3.15 0.90 1.46 46 28 5 3 31.501.20 3.15 1.10 1.74 50 32 5 3 35.001.50 3.15 1.40 2.14 57 37 5 3 27.002.00 3.15 1.90 2.86 68 48 5 3 25.502.50 3.15 2.40 3.36 68 48 5 4 25.503.00 4.00 2.90 4.06 80 58 5 5 25.50 23.503.50 4.50 3.40 4.66 87 63 5 5 27.50 27.004.00 5.00 3.90 5.26 93 68 5 5 25.50 25.504.50 5.60 4.40 5.80 95 70 5 5 34.00 30.005.00 6.30 4.90 6.36 100 73 5 5 27.00 27.005.50 7.10 5.40 7.20 118 90 5 6 45.50 39.506.00 8.00 5.90 8.00 135 105 5 6 34.00 32.006.50 8.00 6.40 8.60 140 110 5 6 40.00 40.507.00 9.00 6.90 9.40 160 125 5 6 48.00 47.508.00 10.00 7.90 10.80 180 145 5 6 51.00 51.009.00 11.20 8.90 12.10 195 160 5 6 71.00 71.00

10.00 12.50 9.90 13.40 215 175 5 6 72.00 71.0012.00 14.00 11.80 16.00 255 210 10 8 92.00 92.0013.00 16.00 12.80 17.00 255 210 10 8 99.00 98.0014.00 16.00 13.80 18.00 255 210 10 8 116.00 104.0016.00 18.00 15.80 20.40 280 230 10 8 128.00 127.0020.00 22.40 19.80 24.80 310 250 10 8 165.00 165.0025.00 28.00 24.70 30.70 370 300 15 10 320.00 316.0030.00 31.50 29.70 36.10 400 320 15 10 382.00 354.0040.00 40.00 39.70 46.50 430 340 15 12 580.00 590.0050.00 50.00 49.70 56.90 460 360 15 12 940.00 900.00

Guhringguide (cutting rates) page

bright

65

HSS

63

105

446

C

d2

l1

d3

l 4

d4

HSS

63 63

105 105

443 445

A B

d2

l1

d3

l 4

d4

– –

Standard range and technical data

Reamers

Standard range and technical data

HSS hand taper socket reamers, roughing

HSS hand taper socket reamers, finishing

Product information

• right hand cutting• straight-fluted with chip breakers• for pre-reaming holes for Morse

tapers• with square to DIN 10• with internal centres on both ends

For finishing we recommend the finishing reamers Guhring no. 443 or 445.

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance –

Morsetaper

Shank-Ød2

small Ød3

large Ød4

Totallength l1

Cutting edge

length l4

No. offlutes

Code no.Price per unit (€)

4 25.00 25.917 32.098 179 119 10 25.917 163.005 31.50 37.558 45.452 222 150 12 37.558 330.006 45.00 53.859 64.704 300 208 14 53.859 1040.00

Guhringguide (cutting rates) page

Product information

• right hand cutting• form A: straight-fluted

form B: left hand spiral flutes• for reaming of holes for Morse

tapers• with square to DIN 10• with internal centres on both ends

For pre-machining we recommend hand taper pin reamers with chip breaker flutes Guhring no. 446.

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 204

Tolerance –

Morsetaper

Shank-Ød2

small Ød3

large Ød4

Totallength l1

Cutting edge

length l4

No. offlutes

Code no.Price per unit (€)

0 8.00 6.547 9.722 93 61 6 6.547 46.001 10.00 9.571 12.863 102 66 7 9.571 49.002 14.00 14.733 18.679 121 79 8 14.733 71.003 20.00 20.010 24.829 146 96 8 20.010 96.004 25.00 26.229 32.410 179 119 10 26.229 163.005 31.50 37.873 45.767 222 150 12 37.873 294.006 45.00 54.172 65.016 300 208 14 54.172 800.00

Guhringguide (cutting rates) page

66

HSS

63

105

1433

B

l1

d3d

4

l 4

d2

Reamers

Standard range and technical dataStandard range and technical data

HSS hand taper reamers, finishing

bright

Product information

• right hand cutting• left hand spiral flutes• with taper 1 : 10 for reaming of

conical pre-machined holes • with square to DIN 10

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Tolerance –

Shank-Ød2

small Ød3

large Ød4

Totallength l1

Cutting edgelength l4

No. offlutes

Code no.Price per unit (€)

8.00 3.00 10.00 100 70 5 3.000 45.0013.00 5.00 15.00 140 100 7 5.000 61.0021.00 10.00 25.00 195 150 9 10.000 129.0030.00 15.00 35.00 250 200 11 15.000 256.0040.00 23.00 45.00 275 220 11 23.000 350.00

Guhringguide (cutting rates) page

67

HSS-E

63

105

410

l1

l4

d3d

1

l6

d4

d2

143

Standard range and technical data

Reamers

Standard range and technical data

HSS-E machine taper pin reamersProduct information

• right hand cutting• with approx. 45° left hand spiral

flutes• with taper 1 : 50 for the reaming of

holes to suit taper pins to DIN 1, 258, 7977 and 7978

• ≤ Ø 1.50 mm with 60° external centres on both ends ≤ Ø 4.00 mm with 90° external centres on both ends > Ø 4.00 mm with internal centres on both ends

• ≤ Ø 1.50 mm to Guhring standard • with driving tang to DIN 1809

For pre-machining we recommend taper pin drills Guhring no. 531 and 532. However, the pre-drilled hole can also be cylindrical.

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 2179

Tolerance –

Nom.-Ød1

Shank-Ød2

small Ød3

large Ød4

Totallength l1

Cutting edge

length l4

Flatlength l6

No. offlutes Price per unit (€)

1.00 1.40 0.80 1.46 60 33 5 2 40.501.50 2.10 1.40 2.14 70 37 5 2 25.502.00 3.15 1.90 2.86 86 48 5 3 26.002.50 3.15 2.40 3.36 86 48 5 3 31.003.00 4.00 2.90 4.06 100 58 5 3 28.504.00 5.00 3.90 5.26 112 68 5 3 29.005.00 6.30 4.90 6.36 122 73 5 3 30.506.00 8.00 5.90 8.00 160 105 5 3 35.006.50 8.50 6.40 8.78 188 119 5 3 43.508.00 10.00 7.90 10.80 207 145 5 3 52.00

10.00 12.50 9.90 13.40 245 175 5 3 67.0012.00 16.00 11.80 16.00 290 210 10 3 84.00

Guhringguide (cutting rates) page

68

HSS-E

63

105

411

l1

d4

l4

d3d

1

l 6

143

Reamers

HSS-E machine taper pin reamersProduct information

• right hand cutting• with approx. 45° left hand spiral

flutes• with taper 1 : 50 for the reaming of

holes to suit taper pins to DIN 1, 258, 7977 and 7978

• with internal centres on both ends• Ø 13.00 and 14.00 mm to Guhring

standard

For pre-machining we recommend taper pin drills Guhring no. 531 and 532. However, the pre-drilled hole can also be cylindrical.

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 2180

Tolerance –

Nom.-Ød1

Morsetaper

small Ød3

large Ød4

Totallength l1

Cutting edge

length l4

Flatlength l6

No. offlutes Price per unit (€)

5.00 1 4.90 6.36 155 73 5 3 58.006.00 1 5.90 8.00 187 105 5 3 56.008.00 1 7.90 10.80 227 145 5 3 76.00

10.00 1 9.90 13.40 257 175 5 3 73.0012.00 2 11.80 16.00 315 210 10 3 92.0013.00 2 12.86 16.74 295 194 10 3 101.0014.00 2 13.86 17.74 295 194 10 3 101.0016.00 2 15.80 20.40 335 230 10 3 130.0020.00 3 19.80 24.80 377 250 10 3 202.0025.00 3 24.70 30.70 427 300 15 3 302.0030.00 4 29.70 36.10 475 320 15 4 470.0040.00 4 39.70 46.50 495 340 15 6 730.0050.00 5 49.70 56.90 550 360 15 8 1040.00

Guhringguide (cutting rates) page

bright

Std. range and technical data

Hand Reamers

Han

d R

eam

ers

70

Din 206 A HSS 412 72

B HSS 413 72

Din 859 B

HSS 415 74

HSS 416 76

HSS 417 76

Reamers

table of contents

multimedia!Order precision tools fromthe catalogue or special tool programonline at www.guehring.de or on cD-ROM: Made by Guhring

Hand reamers

bright

Standard Form Tool illustration Tool material Surface finish

Ø-range Guhring no.

Standardrangepage

1.00-60.00

1.00-60.00

adjustable4.50-60.00

Guhring std. quickly adjustable. with blades

6.40-80.00

replacement blades6.40-80.00

71

HSS

206 206 859

412 413 415 416

72 72 74 76

Reamers

compass

Tool material

Form G.std.

Surface finish

Guhring no.

Std. range and techn. data page

Surface finish: bright

optimally suited

optimally suited,if sufficient space at bottom of hole(long taper lead)

Material Hole type Task

Steels < 500 N/mm²i. e. commonstructural steels

Through hole

to produce a specific tolerance

to adapt the hole diameter

requiring a large adjustment range

Blind hole

to produce a specific tolerance

to adapt the hole diameter

requiring a large adjustment range

Steels < 900 N/mm², i. e.free cutting steels,heat-treatable steels,tool steels,case hardened steels Cast materialsi. e. GG10/GG20/GGG40

Through hole

to produce a specific tolerance

to adapt the hole diameter

requiring a large adjustment range

Blind hole

to produce a specific tolerance

to adapt the hole diameter

requiring a large adjustment range

Soft non-ferrous metals, i.e. alu-minium, brass,copper, bronze

Through hole

to produce a specific tolerance

to adapt the hole diameter

requiring a large adjustment range

Blind hole

to produce a specific tolerance

to adapt the hole diameter

requiring a large adjustment range

72

HSS

71 71

105 105

412 413

A B

l1d

1

l4

d2

Reamers

Standard range and technical dataStandard range and technical data

HSS hand reamersProduct information

• right hand cutting• form A straight-fluted• form B left hand spiral flutes• with square to DIN 10• ≤ Ø 3.75 mm with external centres

on both ends > Ø 3.75 mm with internal centres on both ends

• ≤ Ø 1.75 mm to Guhring standard

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 206

Tolerance to Din 1420, forhole tolerance zone H7

Nom.-Ø d1

Shank-Ø d2

Totallength l1

Cutting edgelength l4

No. offlutes Price per unit (€)

1.00 1.00 34 13 3 28.00 25.001.20 1.20 38 17 3 26.001.40 1.40 41 20 3 27.00 21.501.50 1.50 41 20 3 21.50 19.901.60 1.60 44 21 3 24.002.00 2.00 50 25 4 19.10 18.502.20 2.20 54 27 4 22.502.50 2.50 58 29 4 19.10 18.202.80 2.80 62 31 6 22.503.00 3.00 62 31 6 19.40 19.103.20 3.20 71 35 6 24.003.50 3.50 71 35 6 22.50 22.504.00 4.00 76 38 6 21.00 16.304.50 4.50 81 41 6 22.50 19.605.00 5.00 87 44 6 22.00 19.105.50 5.50 93 47 6 23.00 21.006.00 6.00 93 47 6 19.60 18.506.50 6.50 100 50 6 24.50 21.007.00 7.00 107 54 6 21.50 19.907.50 7.50 107 54 6 26.50 22.508.00 8.00 115 58 6 22.00 21.508.50 8.50 115 58 6 28.50 23.009.00 9.00 124 62 6 25.00 24.009.50 9.50 124 62 6 28.50 25.00

10.00 10.00 133 66 6 26.00 24.0010.50 10.50 133 66 6 36.00 28.0011.00 11.00 142 71 6 30.50 26.0011.50 11.50 142 71 6 40.00 31.5012.00 12.00 152 76 6 28.50 28.0012.50 12.50 152 76 6 44.00 42.0013.00 13.00 152 76 6 41.50 42.0013.50 13.50 163 81 8 52.00 49.0014.00 14.00 163 81 8 45.50 45.5014.50 14.50 163 81 8 51.00 52.0015.00 15.00 163 81 8 49.00 48.5015.50 15.50 175 87 8 71.00 70.0016.00 16.00 175 87 8 51.00 50.0016.50 16.50 175 87 8 68.00 59.0017.00 17.00 175 87 8 56.00 52.00

bright

73

HSS

105 105

412 413

Standard range and technical data

Reamers

Standard range and technical data

HSS hand reamers (continued)Tool material

Surface finish

Discount group

Guhring no.

Nom.-Ø d1

Shank-Ø d2

Totallength l1

Cutting edgelength l4

No. offlutes Price per unit (€)

17.50 17.50 188 93 8 81.00 71.0018.00 18.00 188 93 8 58.00 58.0018.50 18.50 188 93 8 80.00 76.0019.00 19.00 188 93 8 64.00 63.0019.50 19.50 201 100 8 118.00 79.0020.00 20.00 201 100 8 63.00 62.0021.00 21.00 201 100 8 89.00 74.0022.00 22.00 215 107 8 75.00 71.0023.00 23.00 215 107 8 95.00 83.0024.00 24.00 231 115 8 83.00 83.0025.00 25.00 231 115 8 85.00 85.0026.00 26.00 231 115 8 94.00 90.0027.00 27.00 247 124 10 146.00 120.0028.00 28.00 247 124 10 117.00 116.0029.00 29.00 247 124 10 185.00 134.0030.00 30.00 247 124 10 122.00 121.0031.00 31.00 265 133 10 171.00 149.0032.00 32.00 265 133 10 135.00 135.0033.00 33.00 265 133 10 165.00 171.0034.00 34.00 284 142 10 165.00 163.0035.00 35.00 284 142 10 164.00 164.0036.00 36.00 284 142 10 174.00 172.0037.00 37.00 284 142 10 220.00 260.0038.00 38.00 305 152 10 232.00 208.0039.00 39.00 305 152 10 286.00 326.0040.00 40.00 305 152 10 222.00 216.0041.00 41.00 305 152 10 308.00 262.0043.00 43.00 326 163 12 404.0044.00 44.00 326 163 12 336.0045.00 45.00 326 163 12 332.00 320.0046.00 46.00 326 163 12 392.0047.00 47.00 326 163 12 392.0048.00 48.00 347 174 12 392.0049.00 49.00 347 174 12 500.0050.00 50.00 347 174 12 382.0060.00 60.00 367 194 12 580.00 610.00

74

HSS

71

105

415

B

d2

l1

l4

d1

Reamers

Standard range and technical dataStandard range and technical data

HSS hand reamers, adjustable

bright

Product information

• right hand cutting• left hand spiral flutes• with square to DIN 10• with internal centres on both ends

The hand reamers are ground to nom. size and not for hole tolerance zone H7.

The adjustment range is 1/100 of the nom. diameter, i. e. for Ø 10.00 mm approx. 0.1 mm. From Ø 6.50 mm the adjustment is via a lock nut.

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Din 859

Tolerance –

Nom.-Ø d1

Shank-Ø d2

Totallength l1

Cutting edgelength l4

No. offlutes Price per unit (€)

4.50 4.50 81 27 6 58.005.50 5.50 93 33 6 55.006.00 6.00 93 33 6 67.006.50 6.50 100 34 6 73.007.00 7.00 107 38 9 81.007.50 7.50 107 38 9 86.008.00 8.00 115 42 9 81.008.50 8.50 115 42 9 79.009.00 9.00 124 46 9 86.009.50 9.50 124 46 9 105.00

10.00 10.00 133 50 9 87.0010.50 10.50 133 50 9 93.0011.00 11.00 142 51 9 107.0011.50 11.50 142 51 9 112.0012.00 12.00 152 56 9 101.0012.50 12.50 152 56 9 116.0013.00 13.00 152 56 9 116.0013.50 13.50 163 61 9 139.0014.00 14.00 163 61 9 119.0015.00 15.00 163 61 9 122.0016.00 16.00 175 67 9 153.0017.00 17.00 175 67 9 141.0018.00 18.00 188 68 9 161.0019.00 19.00 188 68 9 165.0020.00 20.00 201 75 9 170.0022.00 22.00 215 82 12 202.0023.00 23.00 215 82 12 228.0024.00 24.00 231 85 12 222.0025.00 25.00 231 85 12 222.0026.00 26.00 231 85 12 182.0027.00 27.00 247 94 12 266.0028.00 28.00 247 94 12 218.0029.00 29.00 247 94 12 300.0030.00 30.00 247 94 12 288.0031.00 31.00 265 99 12 314.0032.00 32.00 265 99 12 336.0033.00 33.00 265 99 12 424.0034.00 34.00 284 108 12 336.0035.00 35.00 284 108 12 378.00

75

HSS

105

415

Standard range and technical data

Reamers

Standard range and technical data

HSS hand reamers, adjustable (continued)Tool material

Surface finish

Discount group

Guhring no.

Nom.-Ø d1

Shank-Ø d2

Totallength l1

Cutting edgelength l4

No. offlutes Price per unit (€)

36.00 36.00 284 108 12 324.0038.00 38.00 305 111 12 438.0040.00 40.00 305 111 12 580.0041.00 41.00 305 111 12 630.0043.00 43.00 326 120 12 800.0045.00 45.00 326 120 12 950.0047.00 47.00 326 120 12 820.0049.00 49.00 347 131 12 950.0050.00 50.00 347 131 12 710.0051.00 51.00 347 131 16 900.0054.00 54.00 367 131 16 900.0055.00 55.00 367 131 16 800.0058.00 58.00 367 131 16 1120.0059.00 59.00 367 131 16 1100.0060.00 60.00 367 131 16 1020.00

76

HSS

71 –

105 105

416 417

– –

l1

l4d

1

Reamers

Std. range and technical data

HSS hand reamers, quickly adjustable

bright

Product information

• right hand cutting• with wide adjustment range• with square to DIN 10• with internal centres on both ends

The quickly adjustable hand reamers are especially suitable for maintenance and repairs.

Total length, cutting edge length and number of flutes only apply to Guhring no. 416.

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std. Replacement

blades

Nom.-Ø d1 from to from to

Totallength l1

Cutting edge

length l4

No. offlutes Price per unit (€)

6.40 6.40 7.20 1/4 9/32 110 32 4 87.00 46.507.20 7.20 8.00 9/32 21/64 110 32 4 87.00 46.508.00 8.00 9.00 21/64 23/64 115 34 5 87.00 42.509.00 9.00 10.00 23/64 25/64 115 34 5 96.00 50.00

10.00 10.00 11.00 25/64 7/16 115 34 5 96.00 55.0011.00 11.00 12.00 7/16 15/32 125 35 5 96.00 55.0012.00 12.00 13.50 15/32 17/32 135 41 5 108.00 56.0013.50 13.50 15.50 17/32 39/64 146 50 5 120.00 59.0015.50 15.50 18.00 39/64 45/64 166 60 5 123.00 66.0018.00 18.00 21.00 45/64 53/64 178 65 5 135.00 70.0021.00 21.00 24.00 53/64 61/64 195 76 5 162.00 91.0024.00 24.00 27.50 61/64 15/64 218 82 5 173.00 90.0027.50 27.50 31.50 15/64 115/64 245 86 5 200.00 102.0031.50 31.50 37.00 115/64 129/64 280 98 6 278.00 155.0037.00 37.00 45.00 129/64 149/64 325 108 6 360.00 176.0045.00 45.00 55.00 149/64 25/32 370 118 6 510.00 236.0055.00 55.00 67.00 25/32 241/64 400 125 6 530.00 300.0067.00 67.00 80.00 241/64 35/32 435 140 8 720.00 430.0080.00 80.00 95.00 35/32 33/4 475 155 8 1200.00 560.00

Adjustment range mm/inch

Countersinks

Co

un

ters

inks

• Countersinks from page 82

• Counterbores with fixed pilot from page 93/99

• Counterbores with hole for detachable pilot from page 95

• Spot facers from page 100

78

Din334 A HSS 470 82 145

B HSS 471 82 145

C HSS 472 83 145

D HSS 473 83 145

Din 335 A HSS 474 84 145

B HSS 475 84 145

C HSS 476 85 145

HSS 1326 85 145

HSS 327 85 145

D HSS 477 87 145

HSS 328 87 145

C HSS 498 86 –

HSS 499 86 –

Din 347 A HSS 478 88 145

B HSS 479 88 145

C HSS 480 89 145

D HSS 481 89 145

Din 1866 D HSS 436 90 144

HSS 1318 90 144

HSS 437 91 144

HSS 1319 91 144

Countersinks

table of contents

countersinks

bright steam tempered TiN TiAlN

Standard Form Tool illustration Tool material/carbide grade

Surfacefinish

Ø-range Guhring no.

Standard rangepage

Guhring-guide page

8.00-20.00

16.00-100.00

6.30-25.00

16.00-80.00

8.00-20.00

16.00-100.00

4.30-31.00

4.30-31.00

5.00-31.00

15.00-100.00

25.00-50.00

Countersink sets in metal case consisting of Guhring no.476

6.30-20.50

Countersink sets in metal case consisting of Guhring no.327

6.30-20.50

8.00-20.00

20.00-100.00

Guhring std. 16.00

25.00/40.00

for fine tolerances 3.30-19.00

for fine tol. 5.00-19.00

for medial tolerances 6.60-21.50

for medial tol. 6.60-21.50

79

Din 1866 D HSS 438 92 145

HSS 1323 92 145

Din 373 - HSS 482 93 146

HSS 324 93 146

HSS 483 94 146

HSS 325 94 147

HSS 484 94 147

HSS 326 94 147

- HSS 485 99 147

HSS 486 99 147

HSS 487 100 147

Din 375 - HSS 463 95 147

Din 1868 - - - 464 96 –

- - 465 97 –

- - 466 98 –

Din 1862 - HSS-E 432 100 147

HSS-E 433 101 147

HSS-E 434 102 147

HSS-E 435 103 147

Countersinks

countersinks (continued)Standard Form Tool illustration Tool material/

carbide gradeSurfacefinish

Ø-range Guhring no.

Standard rangepage

Guhring-guide page

for tap. size holes 6.00-19.00

for tap. size holes 6.00-15.00

counterbores with fixed pilot

for fine tolerances 2.20-20.00

for fine tolerances 6.00-20.00

for medial tolerances 6.00-20.00

for medial tolerances 6.00-18.00

for tapping size holes 6.00-20.00

for tapping size holes 6.00-18.00

Guhring std. for fine tol. 18.00-40.00

for medial tol. 18.00-40.00

for tap. size holes 18.00-33.00

counterbores with hole for detachable pilot

15.00-63.00

for fine tolerances 8.40-25.00

for medial tolerances 9.00-39.00

for tapping size holes 6.80-32.00

with no. 1 Morse 3.50-13.00

no. 2 6.00-30.00

no. 3 10.00-30.00

no. 4 20.00-48.00

Spot facers

80

HSS HSS-E HSS

– – – – – – – – – – A B C D A B C D A B C D – – – C

324325326

327 328 432 433 434 435436437438

463464*465*466*

470 471 472 473 474 475 476 477 478 479 480 481482483484

485486487

131813191323

1326

373 335 335 1862 1862 1862 1862 1866 375 1868 334 334 334 334 335 335 335 335 347 347 737 1866 335

85 87 102 101 102 103 95 82 82 83 83 84 84 85 87 88 88 89 89 85

83

Countersinks

compass

* Pilots for Guhring no. 463

Special countersinking tools

We also produce countersinking tools as special tools

to specific customer requirements. This includes, for

example, countersinks with carbide cutting edges and

several or various steps as well as countersink angles,

allowing several complex countersinking operations in one

operation.

Tool material

Form

Surface finish

Guhring no.

DIN G.std. G.std. G.std.

Std. range and technical data page from 93 from 90 from 96 from 93 from 99 from 90

Surface finish: bright steam tempered TiN TiAlN

optimally suited

Material Type Machining

Steels up to a tensile strength of approx. 1000 N/mm², grey casr iron, non-ferrous metals, plastics

Counter-sink Countersinking

Hole High tolerance requirement

Counter-bore

Counterboring flat or oblique surface

Steels with a tensile strengthabove 1000 N/mm²

Counter-sink Countersinking

Hole High tolerance requirementon

requeston

requeston

requeston

request

Counter-bore

Counterboring flat or oblique surface

onrequest

onrequest

81

HSS HSS-E HSS

– – – – – – – – – – A B C D A B C D A B C D – – – C

324325326

327 328 432 433 434 435436437438

463464*465*466*

470 471 472 473 474 475 476 477 478 479 480 481482483484

485486487

131813191323

1326

373 335 335 1862 1862 1862 1862 1866 375 1868 334 334 334 334 335 335 335 335 347 347 737 1866 335

85 87 102 101 102 103 95 82 82 83 83 84 84 85 87 88 88 89 89 85

83

Countersinks

Tool material

Form

Surface finish

Guhring no.

DIN G.std. G.std. G.std.

Std. range and technical data page from 93 from 90 from 96 from 93 from 99 from 90

Surface finish: bright steam tempered TiN TiAlN

optimally suited

Material Type Machining

Steels up to a tensile strength of approx. 1000 N/mm², grey casr iron, non-ferrous metals, plastics

Counter-sink Countersinking

Hole High tolerance requirement

Counter-bore

Counterboring flat or oblique surface

Steels with a tensile strengthabove 1000 N/mm²

Counter-sink Countersinking

Hole High tolerance requirementon

requeston

requeston

requeston

request

Counter-bore

Counterboring flat or oblique surface

onrequest

onrequest

82

HSS

81

105

470

A

l1

d1

d2

60o

d3

l 1

d1

60o

d3

145

HSS

81

105

471

B

l1

d2

d1

60o

145

Countersinks

Standard range and technical dataStandard range and technical data

60° HSS countersinksProduct information

• right hand cutting• multi-fluted• straight-fluted• relief-ground• ≤ Ø 8.0 mm bright,

> Ø 8.0 mm steam tempered

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 334

bright steam tempered

Nom.-Ød1

small Ød2

Shank-Ød3

Totallength l1

No. offlutes Price per unit (€)

8.00 – 8.00 50 5 9.8012.50 2.00 8.00 50 5 16.8016.00 3.20 10.00 60 7 22.5020.00 5.00 10.00 63 7 27.00

Guhringguide (cutting rates) page

Product information

• right hand cutting• multi-fluted• straight-fluted• relief-ground• Ø 100,00 mm to Guhring std.

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 334

Nom.-Ød1

small Ød2

Morsetaper

Totallength l1

No. offlutes Price per unit (€)

16.00 3.20 1 100 7 49.00 25.00 7.00 2 125 9 71.00 31.50 9.00 2 132 9 90.00 40.00 12.00 3 160 11 135.00100.00 31.50 4 224 11 1060.00

Guhringguide (cutting rates) page

83

HSS

81

105

472

C

l1

d2

d3

d1

60o

145

HSS

81

105

473

D

l1

d2

d1

60o

145

Standard range and technical data

Countersinks

Standard range and technical data

60° HSS countersinksProduct information

• right hand cutting• three-fluted• radial relief ground

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 334

Nom.-Ød1

small Ød2

Shank-Ød3

Totallength l1

Price per unit (€)

6.30 1.60 5.00 45 9.50 8.00 2.00 6.00 50 8.9012.50 3.20 8.00 56 11.8016.00 4.00 10.00 63 14.3020.00 5.00 10.00 67 20.0025.00 6.30 10.00 71 28.00

Guhringguide (cutting rates) page

Product information

• right hand cutting• three-fluted• radial relief ground

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 334

Nom.-Ød1

small Ød2

Morsetaper

Totallength l1

Price per unit (€)

16.00 4.00 1 90 28.5020.00 5.00 2 106 35.5025.00 6.30 2 112 37.5031.50 10.00 2 118 46.5040.00 12.50 3 150 74.0050.00 16.00 3 160 97.0063.00 20.00 4 190 185.0080.00 25.00 4 200 326.00

Guhringguide (cutting rates) page

84

HSS

81

105

474

A

l1

d1

d2

90o

d3

l 1

d1

90o

d3

145

HSS

81

105

475

B

l1

d2

d1

90o

145

Countersinks

Standard range and technical dataStandard range and technical data

90° HSS countersinksProduct information

• right hand cutting• straight-fluted• multi-fluted• relief-ground• ≤ Ø 8.0 mm bright,

> Ø 8.0 mm steam tempered

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 335

bright steam tempered TiN TiAlN

Nom.-Ød1

small Ød2

Shank-Ød3

Totallength l1

No. offlutes Price per unit (€)

8.00 – 8.00 48 5 10.4012.50 2.00 8.00 48 5 18.6016.00 3.20 10.00 56 7 26.0020.00 5.00 10.00 60 7 31.50

Guhringguide (cutting rates) page

Product information

• right hand cutting• straight-fluted• multi-fluted• relief-ground• Ø 20.00 and 100.00 mm to Guhring

standard

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 335

Nom.-Ød1

small Ød2

Morsetaper

Totallength l1

No. offlutes Price per unit (€)

16.00 3.20 1 95 7 43.00 20.00 5.00 2 106 7 59.00 25.00 7.00 2 118 9 64.00 31.50 9.00 2 122 9 77.00 40.00 12.00 3 150 11 120.00 50.00 16.00 3 155 13 174.00 63.00 20.00 4 185 15 272.00 80.00 25.00 4 196 17 490.00100.00 31.50 4 212 17 1300.00

Guhringguide (cutting rates) page

85

HSS

81 81 80

105 105 105

476 1326 327

C C C

l1

d2

d3

d1

90o

145 145 145

Standard range and technical data

Countersinks

Standard range and technical data

90° HSS countersinksProduct information

• right hand cutting• three-fluted• radially relief-ground

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 335

Nom.-Ød1

small Ød2

Shank-Ød3

Totallength l1

Price per unit (€)

4.30 1.30 4.00 40 8.70 19.905.00 1.50 4.00 40 7.90 19.90 18.105.30 1.50 4.00 40 8.70 19.905.80 1.50 5.00 45 8.80 19.906.00 1.50 5.00 45 8.00 19.906.30 1.50 5.00 45 8.80 19.90 18.107.00 1.80 6.00 50 8.50 21.507.30 1.80 6.00 50 9.80 22.508.00 2.00 6.00 50 8.90 22.50 20.508.30 2.00 6.00 50 9.90 22.50 20.509.40 2.20 6.00 50 10.40 32.00 29.50

10.00 2.50 6.00 50 10.70 25.00 22.5010.40 2.50 6.00 50 11.50 27.00 25.0011.50 2.80 8.00 56 11.50 28.50 25.5012.40 2.80 8.00 56 12.10 29.50 26.5013.40 2.90 8.00 56 13.00 37.50 30.5015.00 3.20 10.00 60 13.50 33.50 30.5016.50 3.20 10.00 60 14.30 35.00 31.5019.00 3.50 10.00 63 19.60 48.5020.50 3.50 10.00 63 19.90 49.50 45.0023.00 3.80 10.00 67 25.50 62.0025.00 3.80 10.00 67 27.50 67.00 61.0026.00 3.80 10.00 67 36.50 96.0028.00 4.00 12.00 71 37.50 99.0030.00 4.20 12.00 71 40.50 107.00 75.0031.00 4.20 12.00 71 41.00 108.00 79.00

Guhringguide (cutting rates) page

86

HSS

105

498

C

HSS

105

499

C

Countersinks

Standard range and technical dataStandard range and technical data

90° HSS countersink sets

bright TiN

Product information

• right hand cutting• three-fluted• radially relief-ground

Set in metal case, consisting of Guhring no. 476, nom.-Ø:

6.30 mm 8.30 mm10.40 mm12.40 mm16.50 mm20.50 mm

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 335

Codeno. Price per set (€)

7.000 124.00

Guhringguide (cutting rates) page

Product information

• right hand cutting• three-fluted• radially relief-ground

Set in metal case, consisting of Guhring no. 327, nom.-Ø:

6.30 mm 8.30 mm10.40 mm12.40 mm16.50 mm20.50 mm

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 335

Codeno. Price per set (€)

7.000 204.00

Guhringguide (cutting rates) page

87

HSS

81 80

105 105

477 328

D D

l1

d2

d1

90o

145 145

Standard range and technical data

Countersinks

Standard range and technical data

90° HSS countersinksProduct information

• right hand cutting• three-fluted• radially relief-ground• Ø 100.00 mm to Guhring std.

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 335

Nom.-Ød1

small Ød2

Morsetaper

Totallength l1

Price per unit (€)

15.00 3.20 1 85 32.5016.50 3.20 1 85 34.5019.00 3.50 2 100 44.5020.50 3.50 2 100 44.5023.00 3.80 2 106 45.0025.00 3.80 2 106 45.00 92.0026.00 3.80 2 106 46.5028.00 4.00 2 112 46.5030.00 4.20 2 112 47.5031.00 4.20 2 112 50.00 101.0034.00 4.50 2 118 53.0037.00 4.80 2 118 58.00 116.0040.00 10.00 3 140 72.00 150.0050.00 14.00 3 150 90.00 185.0063.00 16.00 4 180 146.0080.00 22.00 4 190 252.00100.00 28.00 4 200 354.00

Guhringguide (cutting rates) page

88

HSS

81

105

478

A

l1

d1

d2

120

o

d3

l 1

d1

120

o

d3

145

HSS

81

105

479

B

l1

d2

d1

120

o

145

Countersinks

Standard range and technical dataStandard range and technical data

120° HSS countersinksProduct information

• right hand cutting• multi-fluted• straight-fluted• relief-ground• ≤ Ø 8,00 mm bright,

> Ø 8,00 mm steam tempered• ≤ Ø 12.50 mm und Ø 20.00 mm to

Guhring std.

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 347

bright steam tempered

Nom.-Ød1

small Ød2

Shank-Ød3

Totallength l1

No. offlutes Price per unit (€)

8.00 2.00 8.00 42 5 15.0012.50 2.00 8.00 42 5 21.5016.00 3.20 10.00 53 7 30.0020.00 5.00 10.00 56 7 36.50

Guhringguide (cutting rates) page

Product information

• right hand cutting• multi-fluted• straight-fluted• relief-ground• Ø 20.00 und 100.00 mm to Guhring

std.

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 347

Nom.-Ød1

small Ød2

Morsetaper

Totallength l1

No. offlutes Price per unit (€)

20.00 5.00 2 106 7 59.00 25.00 7.00 2 112 9 68.00 40.00 12.00 3 140 11 124.00100.00 31.50 4 200 17 1220.00

Guhringguide (cutting rates) page

89

HSS

81

105

480

C

l1

d2

d3

d1

120

o

145

HSS

81

105

481

D

l1

d2

d1

120

o

145

Standard range and technical data

Countersinks

Standard range and technical data

120° HSS countersinksProduct information

• three-fluted• right hand cutting• similar to DIN 347• radially relief-ground

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Nom.-Ød1

small Ød2

Shank-Ød3

Totallength l1

Price per unit (€)

16.00 4.00 10.00 53 24.50

Guhringguide (cutting rates) page

Product information

• three-fluted• right hand cutting• similar to DIN 347• radially relief-ground

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Nom.-Ød1

small Ød2

Morsetaper

Totallength l1

Price per unit (€)

25.00 6.30 2 100 51.0040.00 12.50 3 132 97.00

Guhringguide (cutting rates) page

90

HSS

80 81

105 105

436 1318

D D

Kegelsenker 90o, DIN 1866,Art.-Nr. 436; 437; 438Dateiname: A41 00013

l1

d1

90o

d2

d3

l 2

144 144

Countersinks

Standard range and technical dataStandard range and technical data

90° HSS countersinks, for fine tolerancesProduct information

• right hand cutting• right hand spiral flutes• with fixed pilot• Ø 19.00 mm to Guhring std.

For countersinks to DIN 74, part 1

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 1866

bright TiAlN

Countersin-king-Ø

d1

Pilot-Ød2

Shank-Ød3

Totallength l1

Cutting edgelength l2

No. offlutes

For threadsize Price per unit (€)

3.30 1.70 3.30 56 10 2 M 1.6 22.503.80 2.00 3.80 56 10 2 M 1.8 22.504.30 2.20 4.30 56 10 2 M 2 25.005.00 2.70 5.00 56 10 2 M 2.5 22.50 33.006.00 3.20 5.00 71 14 3 M 3 22.50 33.008.00 4.30 5.00 71 14 3 M 4 24.50 42.00

10.00 5.30 8.00 80 18 3 M 5 29.00 50.0011.50 6.40 8.00 80 18 3 M 6 35.00 57.0015.00 8.40 12.50 100 22 3 M 8 43.50 66.0019.00 10.50 12.50 100 22 3 M10 63.00 85.00

Guhringguide (cutting rates) page

91

HSS

80 81

105 105

437 1319

D D

Kegelsenker 90o, DIN 1866,Art.-Nr. 436; 437; 438Dateiname: A41 00013

l1

d1

90o

d2

d3

l 2

144 144

Standard range and technical data

Countersinks

Standard range and technical data

90° HSS countersinks, for medial tolerancesProduct information

• right hand cutting• right hand spiral flutes• with fixed pilot• Ø 21.50 mm to Guhring std.

For countersinks to DIN 74, part 1

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 1866

Countersin-king-Ø

d1

Pilot-Ød2

Shank-Ød3

Totallength l1

Cutting edgelength l2

No. offlutes

For threadsize Price per unit (€)

6.60 3.40 5.00 71 14 3 M 3 25.00 33.00 7.60 3.90 5.00 71 14 3 M 3.5 26.50 9.00 4.50 8.00 80 18 3 M 4 24.50 42.0011.00 5.50 8.00 80 18 3 M 5 29.00 50.0013.00 6.60 12.50 100 22 3 M 6 35.00 57.0017.20 9.00 12.50 100 22 3 M 8 45.50 66.00

21.50 11.00 12.50 100 22 3 M10 63.00 85.00

Guhringguide (cutting rates) page

92

HSS

80 81

105 105

438 1323

D D

Kegelsenker 90o, DIN 1866,Art.-Nr. 436; 437; 438Dateiname: A41 00013

l1

d1

90o

d2

d3

l 2

145 145

Countersinks

Standard range and technical dataStandard range and technical data

90° HSS countersinks, for tapping size holesProduct information

• right hand cutting• right hand spiral flutes• with fixed pilot• Ø 19.00 mm to Guhring std.

For countersinks to DIN 74, part 1

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 1866

bright TiN TiAlN

Countersin-king-Ø

d1

Pilot-Ød2

Shank-Ød3

Totallength l1

Cutting edgelength l2

No. offlutes

For threadsize Price per unit (€)

6.00 2.50 5.00 71 14 3 M 3 25.50 35.507.00 2.90 5.00 71 14 3 M 3.5 27.508.00 3.30 5.00 71 14 3 M 4 27.50 43.00

10.00 4.20 8.00 80 18 3 M 5 31.50 53.0011.50 5.00 8.00 80 18 3 M 6 39.50 61.0015.00 6.80 12.50 100 22 3 M 8 49.50 71.00

19.00 8.50 12.50 100 22 3 M10 76.00

Guhringguide (cutting rates) page

93

HSS

81 80

105 105

482 324

– –

l1

d1

d2

d3

l 2

146 146

Standard range and technical data

Countersinks

Standard range and technical data

HSS counterbores, for fine tolerancesProduct information

• right hand cutting• right hand spiral flutes• with fixed pilot

For countersinks to DIN 74, part 2

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 373

Counterbore-Ø

d1

Pilot-Ød2

Shank-Ød3

Totallength l1

Cutting edgelength l2

No. offlutes

For threadsize Price per unit (€)

2.20 1.10 2.20 45 7 2 M 1 16.502.50 1.30 2.50 45 7 2 M 1.2 16.503.30 1.70 3.30 56 10 2 M 1.6 17.403.80 1.80 3.80 56 10 2 M 1.7 17.404.30 2.20 4.30 56 10 2 M 2 19.105.50 2.80 5.00 71 14 3 M 2.6 19.706.00 3.20 5.00 71 14 3 M 3 14.90 31.506.50 3.70 5.00 71 14 3 M 3.5 16.208.00 4.30 5.00 71 14 3 M 4 13.00 29.00

10.00 5.30 8.00 80 18 3 M 5 14.00 30.5011.00 6.40 8.00 80 18 3 M 6 15.30 33.0015.00 8.40 12.50 100 22 3 M 8 24.50 53.0018.00 10.50 12.50 100 22 3 M10 29.50 63.0020.00 13.00 12.50 100 22 3 M12 31.50 69.00

Guhringguide (cutting rates) page

94

HSS

81 80

105 105

483 325

– –

l1

d1

d2

d3

l 2

146 147

HSS

81 80

105 105

484 326

– –

l1

d1

d2

d3

l 2

147 147

Countersinks

Standard range and technical dataStandard range and technical data

HSS counterbores, for medial tolerancesProduct information

• right hand cutting• right hand spiral flutes• with fixed pilot

For counterbores to DIN 74, part 2and DIN 974, part 1

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 373

Counterbore-Ø

d1

Pilot-Ød2

Shank-Ød3

Totallength l1

Cutting edgelength l2

No. offlutes

For threadsize Price per unit (€)

6.00 3.40 5.00 71 14 3 M 3 14.90 31.506.50 3.90 5.00 71 14 3 M 3.5 16.208.00 4.50 5.00 71 14 3 M 4 13.00 29.00

10.00 5.50 8.00 80 18 3 M 5 14.00 30.5011.00 6.60 8.00 80 18 3 M 6 15.30 33.0015.00 9.00 12.50 100 22 3 M 8 24.50 53.0018.00 11.00 12.50 100 22 3 M10 29.50 63.0020.00 13.50 12.50 100 22 3 M12 31.50

Guhringguide (cutting rates) page

bright steam tempered TiN

Product information

• right hand cutting• right hand spiral flutes• with fixed pilot

For counterbores to DIN 74, part 2

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 373

HSS counterbores, for tapping size holes

Counterbore-Ø

d1

Pilot-Ød2

Shank-Ød3

Totallength l1

Cutting edgelength l2

No. offlutes

For threadsize Price per unit (€)

6.00 2.50 5.00 71 14 3 M 3 16.20 35.006.50 2.90 5.00 71 14 3 M 3.5 17.208.00 3.30 5.00 71 14 3 M 4 15.60 33.50

10.00 4.20 8.00 80 18 3 M 5 14.90 35.0011.00 5.00 8.00 80 18 3 M 6 16.2015.00 6.80 12.50 100 22 3 M 8 25.00 61.0018.00 8.50 12.50 100 22 3 M10 30.00 73.0020.00 10.20 12.50 100 22 3 M12 34.00

Guhringguide (cutting rates) page

95

HSS

80

105

463

l1

d1

d4l 2

147

Standard range and technical data

Countersinks

Standard range and technical data

HSS counterbores with hole for detachable pilotProduct information

• right hand cutting• right hand spiral flutes

For counterbores to DIN 74, part 2, and DIN 974, part 1, to suit detachable pilot:• Guhring no. 464 for fine tolerances• Guhring no. 465 for medial

tolerances• Guhring no. 466 for tapping size

holes

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 375

Counter-bore-Ø

d1

Morsetaper

Hole-Ød4 H8

Totallength l1

Cutting edgelength l2

No. offlutes Price per unit (€)

15.00 2 4.00 132 22 3 59.0018.00 2 5.00 140 25 3 60.0020.00 2 5.00 140 25 3 63.0024.00 2 6.00 150 30 3 71.0026.00 3 8.00 180 35 3 81.0030.00 3 8.00 180 35 3 101.0033.00 3 10.00 190 40 3 112.0040.00 3 10.00 190 40 3 148.0063.00 4 16.00 250 63 4 488.00

Guhringguide (cutting rates) page

96

105

464

d4

d1

Countersinks

Standard range and technical dataStandard range and technical data

Pilots for counterbore Guhring no. 463, for fine tolerancesTool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 1868

Nom.-Ød1

For location holes-Ø

d4

Forcounterbore-Ø

For thread size

Codeno. Price per unit (€)

8.40 4.00 15.00 M 8 8.404 18.208.40 5.00 18.00/20.00 M 8 8.405 22.50

10.50 5.00 18.00/20.00 M 10 10.505 22.5010.50 6.00 24.00 M 10 10.506 25.5013.00 5.00 20.00 M 12 13.005 22.5013.00 6.00 24.00 M 12 13.006 25.5013.00 8.00 26.00 M 12 13.008 27.5015.00 6.00 24.00 M 14 15.006 25.5015.00 8.00 26.00/30.00 M 14 15.008 27.5017.00 8.00 26.00/30.00 M 16 17.008 27.5017.00 10.00 30.00 M 16 17.010 33.0019.00 8.00 33.00 M 18 19.008 27.5019.00 10.00 33.00/36.00 M 18 19.010 33.0021.00 10.00 33.00/36.00/40.00 M 20 21.010 33.0023.00 10.00 36.00/40.00 M 22 23.010 33.0023.00 12.00 43.00 M 22 23.012 49.0025.00 10.00 40.00 M 24 25.010 33.0025.00 12.00 43.00/46.00 M 24 25.012 56.00

Guhringguide (cutting rates) page

97

105

465

d4

d1

Standard range and technical data

Countersinks

Standard range and technical data

Pilots for counterbore Guhring no. 463, for medial tolerancesTool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 1868

Nom.-Ød1

For location holes-Ø

d4

Forcounterbore-Ø

For thread size

Codeno. Price per unit (€)

9.00 4.00 15.00 M 8 9.004 17.309.00 5.00 18.00/20.00 M 8 9.005 22.50

11.00 5.00 18.00/20.00 M 10 11.005 22.5011.00 6.00 24.00 M 10 11.006 25.5013.50 5.00 20.00 M 12 13.505 22.5013.50 6.00 24.00 M 12 13.506 25.5013.50 8.00 26.00 M 12 13.508 27.5015.50 6.00 24.00 M 14 15.506 25.5015.50 8.00 26.00/30.00 M 14 15.508 27.5017.50 8.00 26.00/30.00 M 16 17.508 27.5017.50 10.00 30.00 M 16 17.510 33.0020.00 8.00 33.00 M 18 20.008 27.5020.00 10.00 33.00/36.00 M 18 20.010 33.0022.00 10.00 33.00/36.00/40.00 M 20 22.010 33.0024.00 10.00 36.00/40.00 M 22 24.010 33.0024.00 12.00 43.00 M 22 24.012 49.0026.00 10.00 40.00 M 24 26.010 33.0026.00 12.00 43.00/46.00 M 24 26.012 56.0030.00 12.00 43.00/46.00 M 27 30.012 56.0030.00 16.00 53.00 M 27 30.016 72.0033.00 12.00 48.00 M 30 33.012 56.0033.00 16.00 53.00/61.00 M 30 33.016 57.0036.00 16.00 53.00/57.00/63.00 M 33 36.016 85.0039.00 16.00 57.00/61.00 M 36 39.016 85.00

Guhringguide (cutting rates) page

98

105

466

d4

d1

Countersinks

Standard range and technical dataStandard range and technical data

Pilots for counterbore Guhring no. 463, for tapping size holesTool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 1868

Nom.-Ød1

For location holes-Ø

d4

Forcounterbore-Ø

For thread size

Codeno. Price per unit (€)

6.80 4.00 15.00 M 8 6.804 18.206.80 5.00 18.00/20.00 M 8 6.805 22.508.50 5.00 18.00/20.00 M 10 8.505 22.508.50 6.00 24.00 M 10 8.506 25.50

10.20 5.00 20.00 M 12 10.205 22.5010.20 6.00 24.00 M 12 10.206 25.5010.20 8.00 26.00 M 12 10.208 27.5012.00 6.00 24.00 M 14 12.006 25.5012.00 8.00 26.00/30.00 M 14 12.008 27.5014.00 8.00 26.00/30.00 M 16 14.008 27.5014.00 10.00 30.00 M 16 14.010 33.0015.50 8.00 30.00 M 18 15.508 27.5015.50 10.00 33.00/36.00 M 18 15.510 33.0017.50 10.00 33.00/36.00/40.00 M 20 17.510 33.0019.50 10.00 36.00/40.00 M 22 19.510 33.0019.50 12.00 43.00 M 22 19.512 49.0021.00 10.00 40.00 M 24 21.010 33.0021.00 12.00 43.00/46.00 M 24 21.012 49.0024.00 12.00 43.00/46.00 M 27 24.012 49.0024.00 16.00 53.00 M 27 24.016 72.0026.50 12.00 48.00 M 30 26.512 56.0026.50 16.00 53.00/61.00 M 30 26.516 56.0029.50 16.00 53.00/57.00/63.00 M 33 29.516 72.0032.00 16.00 57.00/61.00 M 36 32.016 85.00

Guhringguide (cutting rates) page

steam tempered

99

HSS

81

105

486

l1

d1

d2

l 2

HSS

81

105

485

l1

d1

d2

l 2

147

147

Standard range and technical data

Countersinks

Standard range and technical data

HSS counterbores, for medial tolerances

HSS counterbores, for fine tolerances

Product information

• right hand cutting• right hand spiral flutes• with fixed pilot

For counterbores to DIN 74, part 2, and DIN 974, part 1

For fine tolerance clearance holes toDIN ISO 273

Tool material

Surface finish

Application recommendations page

Discount group 105

Guhring no.

FormDIN Guhring std.

Product information

• right hand cutting• right hand spiral flutes• with fixed pilot

For counterbores to DIN 74, part 2

For fine tolerance clearance holes toDIN ISO 273

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Counter-bore-Ø

d1

Pilot-Ød2

Morsetaper

Totallength l1

Cutting edgelength l2

No. offlutes

For threadsize Price per unit (€)

18.00 10.50 2 150 25 3 M10 40.5020.00 13.00 2 150 25 3 M12 43.0024.00 15.00 2 162 30 3 M14 51.0026.00 17.00 3 192 35 3 M16 58.0030.00 19.00 3 192 35 3 M18 67.0033.00 21.00 3 204 40 3 M20 79.0036.00 23.00 3 204 40 3 M22 105.0040.00 25.00 3 204 40 3 M24 111.00

Guhringguide (cutting rates) page

Counter-bore-Ø

d1

Pilot-Ød2

Morsetaper

Totallength l1

Cutting edgelength l2

No. offlutes

For threadsize Price per unit (€)

18.00 11.00 2 150 25 3 M10 40.5020.00 13.50 2 150 25 3 M12 43.0024.00 15.50 2 162 30 3 M14 51.0026.00 17.50 3 192 35 3 M16 58.0033.00 22.00 3 204 40 3 M20 79.0036.00 24.00 3 204 40 3 M22 105.0040.00 26.00 3 204 40 3 M24 111.00

Guhringguide (cutting rates) page

100

HSS-E

80

105

432

l1

d1

t

d2

l 2

HSS

81

105

487

l1

d1

d2

l 2

147

147

Countersinks

Standard range and technical dataStandard range and technical data

HSS-E spot facers, Morse taper no. 1

HSS counterbores, for tapping size holes

Product information

• right hand cutting• right hand spiral flutes• with internal thread for drawbolt

M6 to DIN 228. part 1, form A

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 1862

Tolerance to Din 1420, for hole tolerance zone H7

steam tempered

Product information

• right hand cutting• right hand spiral flutes• with fixed pilot

For counterbores to DIN 74, part 2

For fine tolerance clearance holes toDIN ISO 273

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN Guhring std.

Countersin-king-Ø

d1

Pilot-Ød2

MK Totallength l1

Cutting edgelength l2

No. offlutes

For threadsize Price per unit (€)

18.00 8.50 2 150 25 3 M10 41.5020.00 10.20 2 150 25 3 M12 43.0024.00 12.00 2 162 30 3 M14 51.0026.00 14.00 3 192 35 3 M16 59.0030.00 15.50 3 192 35 3 M18 73.0033.00 17.50 3 204 40 3 M20 80.00

Guhringguide (cutting rates) page

Nom.-Ød1

RecessØ d2

Totallength l1

Cutting edgelength l2

Recessdepth t

No. offlutes Price per unit (€)

3.50 – 80 5 – 4 80.00 4.50 – 80 5 – 4 81.00 5.50 – 85 8 – 4 90.0011.00 5.00 95 16 1.50 6 98.0013.00 5.00 95 16 1.50 6 87.00

Guhringguide (cutting rates) page

101

HSS-E

80

105

433

d1

t

d2

l 1

l2

147

Standard range and technical data

Countersinks

Standard range and technical data

HSS-E spot facers, Morse taper no. 2Product information

• right hand cutting• right hand spiral flutes• with internal thread for drawbolt

M10 to DIN 228. part 1, form A

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 1862

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

RecessØ d2

Totallength l1

Cutting edgelength l2

Recessdepth t

No. offlutes Price per unit (€)

6.00 – 112 10 – 6 95.00 8.00 – 112 10 – 6 95.00 9.00 – 112 16 – 6 95.0010.00 5.0 112 16 1.5 6 95.0011.00 5.0 112 16 1.5 6 102.0012.00 5.0 112 16 1.5 6 102.0013.00 5.0 112 16 1.5 6 102.0014.00 6.0 125 20 2.0 6 104.0015.00 6.0 125 20 2.0 6 104.0016.00 8.0 125 20 2.0 8 108.0018.00 10.0 125 20 2.0 8 108.0019.00 10.0 125 20 2.0 8 108.0023.00 12.0 125 25 3.0 8 125.0025.00 12.0 125 25 3.0 8 125.0027.00 15.0 125 25 3.5 8 188.0028.00 15.0 125 25 3.5 8 146.0029.00 15.0 125 25 3.5 8 218.0030.00 15.0 125 25 3.5 8 146.00

Guhringguide (cutting rates) page

102

HSS-E

80

105

434

l1d

1

l2d

2t

147

Countersinks

Standard range and technical dataStandard range and technical data

HSS-E spot facers, Morse taper no. 3Product information

• right hand cutting• right hand spiral flutes• with internal thread for drawbolt

M12 to DIN 228. part 1, form A

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 1862

Tolerance to Din 1420, for hole tolerance zone H7

steam tempered

Nom.-Ød1

RecessØ d2

Totallength l1

Cutting edgelength l2

Recessdepth t

No. offlutes Price per unit (€)

10.00 5.0 125 16 1.5 6 124.0011.00 5.0 125 16 1.5 6 141.0017.00 8.0 135 20 2.0 8 127.0018.00 10.0 135 20 2.0 8 127.0020.00 12.0 145 25 3.0 8 137.0022.00 12.0 145 25 3.0 8 142.0023.00 12.0 145 25 3.0 8 146.0025.00 12.0 145 25 3.0 8 146.0026.00 15.0 145 25 3.5 8 146.0027.00 15.0 145 25 3.5 8 146.0028.00 15.0 145 25 3.5 8 146.0029.00 15.0 145 25 3.5 8 199.0030.00 15.0 145 25 3.5 8 146.00

Guhringguide (cutting rates) page

103

HSS-E

80

105

435

l1

d1

l2

d2

t

147

Standard range and technical data

Countersinks

Standard range and technical data

HSS-E spot facers, Morse taper no. 4Product information

• right hand cutting• right hand spiral flutes• with internal thread for drawbolt

M16 to DIN 228. part 1, form A

Tool material

Surface finish

Application recommendations page

Discount group

Guhring no.

FormDIN 1862

Tolerance to Din 1420, for hole tolerance zone H7

Nom.-Ød1

RecessØ d2

Totallength l1

Cutting edgelength l2

Recessdepth t

No. offlutes Price per unit (€)

20.00 12.0 175 25 3.0 8 167.0021.00 12.0 175 25 3.0 8 195.0022.00 12.0 175 25 3.0 8 165.0023.00 12.0 175 25 3.0 8 206.0024.00 12.0 175 25 3.0 8 206.0025.00 12.0 175 25 3.0 8 214.0026.00 15.0 175 25 3.5 8 214.0027.00 15.0 175 25 3.5 8 268.0028.00 15.0 175 25 3.5 8 220.0029.00 15.0 175 25 3.5 8 220.0030.00 15.0 175 25 3.5 8 220.0031.00 15.0 175 25 3.5 8 220.0032.00 16.0 195 32 3.5 10 224.0033.00 16.0 195 32 3.5 10 224.0034.00 16.0 195 32 3.5 10 224.0035.00 16.0 195 32 3.5 10 224.0036.00 18.0 195 32 4.0 10 224.0037.00 18.0 195 32 4.0 10 224.0038.00 18.0 195 32 4.0 10 224.0039.00 18.0 195 32 4.0 10 224.0041.00 20.0 210 40 4.0 10 256.0042.00 20.0 210 40 4.0 10 256.0043.00 20.0 210 40 4.0 10 256.0044.00 20.0 210 40 4.0 10 256.0045.00 22.0 210 40 4.5 10 292.0046.00 22.0 210 40 4.5 10 376.0047.00 22.0 210 40 4.5 10 376.0048.00 22.0 210 40 4.5 10 376.00

Guhringguide (cutting rates) page

SPeCial CounterSinkS

for special countersink forms we are happy to produce optimally adapted countersinking tools as a customer specific special solution. Contact Guhring, we will convince you with our special countersinking solutions.

Short counterbore system

Sh

ort

co

un

terb

ore

sy

stem

• Pilot counterbores from page 112

• Pilot counterbores for indexable inserts from page 117

• Spot facers from page 120

• Taper countersinks from page 116

• Attachments from page 122

• Holders from page 128

• Back spotfacers and holders from page 134

106

KS 125 HSS 1601 112 148

KS 140 HSS 1602 113 148

KS 108 1603 114 149

KS 115 1604 115 149

KS 100 1654 117 –

1655 118 149

1656 118 149

1658 118 149

HSS-E 1657 118 149

- - 1611 119 –

- - 1612 119 –

KS 120 HSS 1605 120 150

KS 100 1606 121 151

Countersinks

table of contents

Pilot counterboresNorm Type Tool illustration Tool material/

carbide gradeSurface finish

Ø-range Guhringno.

Standard rangepage

Guhring-guide page

Guhringstd. 10.00-57.00

4.80-45.00

carbide/k15 5.80-75.00

carbide/M20 54.00-75.00

Guhringstd.

dependent onindexable

insert

dep.on

ind.insert

20.00-47.00

carbide/k15

carbide/k15

for machining aluminium carbide/k15

clamping screws

screwdriver

Guhringstd. 9.00-67.00

carbide/k15 9.00-67.00

Pilot counterbores for indexable inserts

Spotfacers

bright TiN

107

KS 100

90° HSS 1622 116 151

1615 122 –

1624 122 –

1616 123 –

1617 124 –

1648 125 –

1649 125 –

Countersinks

taper countersinksNorm Type Tool illustration Tool material/

carbide gradeSurface finish

Ø-range Guhringno.

Standard rangepage

Guhring-guide page

Guhringstd. 12.00-30.00

Attachments without safety locking

Attachments with safety locking

Tool illustration Ø-range Guhringno.

Standard rangepage

Guhring-guide page

Pilot with whistle notch flat 1.70-2.50

Set screw DIN 551 M 2.5

Pilot, complete, with 2 locknuts 3.00-24.00

Pilot, complete, with pilot sleeve, fixing screw, locknuts and protective washer

11.00-60.00

Safety bolt 6.50-22.00

Locknut 6.50-22.00

108

1625 126 –

1626 127 –

1627 126 –

1628 128 –

1629 129 –

1630 129 –

1650 131 –

1651 131 –

Countersinks

table of contents

Standard holdersTool illustration Ø-range Guhring

no.Standard

rangepage

Guhring-guide page

short, straight shank 9.00-32.00

short, Morse taper shank 9.00-58.00

long, straight shank 9.00/12.00

long, Morse taper shank 12.50-58.00

straight shank 12.50/18.00

Morse taper shank 12.50-58.00

Universal holders with extractor bushes

Tool extractor for short counterbore with pilot Größe 1-7

Tool extractor for short counterbore w/o pilot Größe 0-7

Attachments

bright

109

RS 115 HSS 1638 132 151

1640 132 151

1641 134 –

1642 135 –

Countersinks

multimedia!Order precision tools fromthe catalogue or special tool programonline at www.guehring.de or on cD-ROM: Made by Guhring

Back spotfacersNorm Type Tool illustration Tool material/

carbide gradeSur-face

finish

Ø-range Guhringno.

Standard rangepage

Guhring-guide page

Guhring std. 11.00-115.00

carbide/k20 43.00-115.00

Holders for back spotfacersTool illustration Ø-range Guhring

no.Standard

rangepage

Guhring-guide page

5.30-14.00

5.30-62.00

110 Countersinks

System summary

Short counterbore system without tool safety device

Counterbores KS 100Guhring no. 1654

Counterbores KS 125Guhring no. 1601Counterbores KS 140Guhring no. 1602

Counterbores KS 108Guhring no. 1603Counterbores KS 115Guhring no. 1604

Spot facers KS 120Guhring no. 1605

Spot facers KS 100Guhring no. 1606

Taper countersinks KS 100 90 °Guhring no. 1622

Pilotswith 2 locknutsGuhring no. 1616

PilotsGuhring no. 1617

Standard short holdersGuhring no. 1625

Universal holdersGuhring no. 1629

Universal holdersGuhring no. 1630

Tool extractor, Guhring no. 1651

Standard short holdersGuhring no. 1626

Standard long holdersGuhring no. 1628

Standard long holdersGuhring no. 1627

Tool extractor, Guhring no. 1650

Counterbores KS 140size 0 Guhring no. 1602

Counterbores KS 108size 0Guhring no. 1603

PilotsGuhring no. 1615

for use with conventional machines

111Countersinks

Short counterbore system with tool safety device

Counterbores KS 100Guhring no. 1654

Counterbores KS 125Guhring no. 1601Counterbores KS 140Guhring no. 1602

Counterbores KS 108Guhring no. 1603Counterbores KS 115Guhring no. 1604

Spot facersKS 120Guhring no. 1605

Spot facersKS 100Guhring no. 1606

Taper countersinks KS 100 90 °Guhring no. 1622

Safety boltGuhring no. 1648

LocknutGuhring no. 1649

Universal holdersGuhring no. 1630

Universal holdersGuhring no. 1629

Tool extractorGuhring no. 1651

for use with CNC machining centres, transfer lines, horizontal boring machines, special machines

112

HSS

104

1601

KS 125

l1

d1

k8

l2

d2

G

KK

148

Countersinks

Standard range and technical data

Product information

• right hand cutting• multi-fluted• tolerance on Ø k8• helix angle 18°• relief angle 6°• with drawbolt thread• to suit interchangeable pilot

Tool material

Surface finish

Discount group

Guhring no.

TypeDIN Guhring std.

bright

Nom.-Ød1

Smallestcutting Ø d2

ThreadG

Short taperKK

Totallength l1

Settingdimension l2

No. offlutes Price per unit (€)

10.00 3.00 M 4 1 40 25 3 31.0011.00 3.00 M 4 1 40 25 3 38.0012.00 3.00 M 4 1 40 25 3 36.5014.00 4.00 M 5 2 48 30 3 31.5014.50 4.00 M 5 2 48 30 3 38.0015.00 4.00 M 5 2 48 30 3 40.0016.00 4.00 M 5 2 48 30 3 41.5018.00 5.00 M 6 3 56 34 4 40.5018.50 5.00 M 6 3 56 34 4 53.0019.00 5.00 M 6 3 56 34 4 50.0020.00 5.00 M 6 3 56 34 4 46.0022.00 5.00 M 6 3 56 34 4 49.5022.50 5.00 M 6 3 56 34 4 59.0023.00 6.00 M 8 4 61 38 4 66.0026.00 6.00 M 8 4 61 38 4 64.0028.00 6.00 M 8 4 61 38 4 68.0030.00 6.00 M 8 4 61 38 4 89.0043.00 8.00 M10 5 67 39 4 155.0048.00 9.00 M12 5.5 68 39 4 216.0052.00 9.00 M12 5.5 68 39 4 228.0053.00 9.00 M12 5.5 68 39 4 256.0055.00 9.00 M12 5.5 68 39 4 272.0057.00 9.00 M12 5.5 68 39 4 272.00

Guhringguide (cutting rates) page

HSS Pilot counterbores

113

HSS

104

1602

KS 140

l1

d1

k8

l2

d2

G

KK

148

Countersinks

Product information

• right hand cutting• multi-fluted• tolerance on Ø k8• helix angle 25°• relief angle 6°• with drawbolt thread from taper size 1 onwards• to suit interchangeable pilot

Tool material

Surface finish

Discount group

Guhring no.

TypeDIN Guhring std.

Nom.-Ød1

Smallestcutting Ø d2

ThreadG

Short taperKK

Totallength l1

Settingdimensi-

on l2

No. offlutes

Codeno. Price per unit (€)

4.80 1.70 – 0 35 22 3 4.800 40.505.00 1.70 – 0 35 22 3 5.000 33.006.00 2.00 – 0 35 22 3 6.000 33.006.50 2.00 – 0 35 22 3 6.500 33.007.40 2.50 – 0 35 22 3 7.400 35.008.00 2.50 – 0 35 22 3 8.000 33.009.00 3.00 M 4 1 40 25 3 9.000 30.50

10.00 3.00 M 4 1 40 25 3 10.000 31.0011.00 3.00 M 4 1 40 25 3 11.000 31.5012.00 3.00 M 4 1 40 25 3 12.000 31.5012.50 3.00 M 4 1 40 25 3 12.500 36.5013.00 3.00 M 4 1 40 25 3 13.000 47.0014.00 3.00 M 4 1 40 25 3 14.000 45.0014.00 4.00 M 5 2 48 30 3 14.001 32.5014.50 4.00 M 5 2 48 30 3 14.501 38.0015.00 3.00 M 4 1 40 25 3 15.000 47.0015.00 4.00 M 5 2 48 30 3 15.001 35.5016.00 3.00 M 4 1 40 25 3 16.000 48.0017.00 3.00 M 4 1 40 25 3 17.000 48.0017.50 3.00 M 4 1 40 25 3 17.500 50.0017.50 3.00 M 4 2 40 25 3 17.501 44.5018.00 3.00 M 4 1 40 25 4 18.000 48.5018.00 5.00 M 6 3 56 34 4 18.002 42.5018.50 4.00 M 5 2 48 30 4 18.500 61.0020.00 4.00 M 5 2 48 30 4 20.000 66.0020.00 5.00 M 6 3 56 34 4 20.001 48.5021.00 5.00 M 6 3 56 34 4 21.001 59.0022.00 4.00 M 5 2 48 30 4 22.000 68.0022.00 5.00 M 6 3 56 34 4 22.001 55.0022.50 5.00 M 6 3 56 34 4 22.501 65.0023.50 5.00 M 6 3 56 34 4 23.500 78.0023.50 6.00 M 8 4 61 37 4 23.501 71.0024.00 5.00 M 6 3 56 34 4 24.000 86.0025.00 5.00 M 6 3 56 34 4 25.000 86.0025.00 6.00 M 8 4 61 37 4 25.001 63.0026.00 6.00 M 8 4 61 37 4 26.001 68.0028.00 5.00 M 6 3 56 34 4 28.000 98.0028.00 6.00 M 8 4 61 37 4 28.001 71.0030.00 6.00 M 8 4 61 37 4 30.000 73.0032.00 6.00 M 8 4 61 37 4 32.000 89.0033.00 6.00 M 8 4 61 37 4 33.000 84.0034.00 8.00 M 10 5 67 39 4 34.000 111.0035.00 8.00 M 10 5 67 39 4 35.000 96.0040.00 8.00 M 10 5 67 39 4 40.000 121.0045.00 8.00 M 10 5 67 39 4 45.000 146.00

Guhringguide (cutting rates) page

HSS Pilot counterbores

114

104

1603

KS 108

l1

d1

k8

l2

d2

G

KK

149

Countersinks

Standard range and technical data

carbide pilot counterboresProduct information

• right hand cutting• three-fluted• tolerance on Ø k8• helix angle 8°• relief angle 6°• ≤ Ø 8.5 mm w/o drawbolt thread

> Ø 8.5 mm with drawbolt thread• to suit interchangeable pilot

Tool material/carbide grade carbide/k15

Surface finish

Discount group

Guhring no.

TypeDIN Guhring std.

bright

Nom.-Ød1

Smallestcutting Ø d2

ThreadG

Short taperKK

Totallength l1

Settingdimension l2

Price per unit (€)

5.80 2.40 – 0 35 22 118.005.90 2.40 – 0 35 22 112.006.30 2.40 – 0 35 22 112.006.80 2.40 – 0 35 22 112.007.00 3.00 – 0 35 22 112.007.50 3.00 – 0 35 22 112.008.00 3.00 – 0 35 22 96.00

11.00 3.70 M 4 1 40 25.5 86.0012.00 3.70 M 4 1 40 25.5 87.0013.00 5.50 M 5 2 48 30 93.0015.00 5.50 M 5 2 48 30 96.0016.00 5.50 M 5 2 48 30 96.0017.00 5.50 M 5 2 48 30 101.0017.50 5.50 M 5 2 48 30 107.0018.00 6.60 M 6 3 56 34 105.0020.00 6.60 M 6 3 56 34 107.0021.00 6.60 M 6 3 56 34 116.0022.00 6.60 M 6 3 56 34 110.0024.00 7.70 M 8 4 61 37 120.0025.00 7.70 M 8 4 61 37 121.0026.00 6.00 M 8 4 61 37 121.0030.00 7.70 M 8 4 61 37 131.0032.00 7.70 M 8 4 61 37 144.0048.00 12.70 M12 51/2 68 39 264.0057.00 9.00 M12 51/2 68 39 376.0064.00 12.70 M12 51/2 68 39 424.0065.00 10.00 M12 6 70 39 442.0066.00 13.80 M12 6 70 39 442.0067.00 13.80 M12 6 70 39 442.0069.00 12.00 M14 7 80 46 500.0073.00 15.70 M14 7 80 46 550.0074.00 15.70 M14 7 80 46 580.0075.00 15.70 M14 7 80 46 580.00

Guhringguide (cutting rates) page

115

104

1604

KS 115

l1

d1

k8

l2

d2

G

KK

149

Countersinks

carbide pilot counterboresProduct information

• right hand cutting• three-fluted• tolerance on Ø k8• helix angle 15°• relief angle 6°• with drawbolt thread• to suit interchangeable pilot

Tool material/carbide grade carbide/M20

Surface finish

Discount group

Guhring no.

TypeDIN Guhring std.

Nom.-Ød1

Smallestcutting Ø d2

ThreadG

Short taperKK

Totallength l1

Settingdimension l2

Price per unit (€)

54.00 12.70 M12 5.5 68 39 308.0055.00 12.70 M12 5.5 68 39 314.0056.00 12.70 M12 5.5 68 39 314.0059.00 13.80 M12 6 70 39 386.0063.00 13.80 M12 6 70 39 412.0065.00 13.80 M12 6 70 39 442.0066.00 13.80 M12 6 70 39 442.0067.00 13.80 M12 6 70 39 442.0068.00 15.70 M14 7 80 46 540.0070.00 15.70 M14 7 80 46 530.0072.00 15.70 M14 7 80 46 530.0073.00 15.70 M14 7 80 46 550.0074.00 15.70 M14 7 80 46 580.0075.00 15.70 M14 7 80 46 580.00

Guhringguide (cutting rates) page

116

HSS

104

1622

KS 100

90o

l 1

d1

l2

d2

G

KK

151

Countersinks

Standard range and technical data

HSS taper countersinks 90°Product information

• right hand cutting• three-fluted• helix angle 20°• axially relief-ground• with drawbolt thread

Tool material

Surface finish

Discount group

Guhring no.

TypeDIN Guhring std.

bright

Nom.-Ød1

Smallestcutting Ø d2

ThreadG

Short taperKK

Totallength l1

Settingdimension l2

Price per unit (€)

12.00 3.00 M 4 1 33 18 30.0015.00 4.00 M 5 2 39 21 36.0020.00 5.00 M 6 3 46 24 45.0030.00 6.00 M 8 4 53 29 75.00

Guhringguide (cutting rates) page

117

104

1654

KS 100

l1

d1±

0,05

l2

d2

G

KK

Countersinks

Pilot counterbores for indexable insertsProduct information

• right hand cutting• three-fluted• tolerance on Ø ± 0,05 mm• helix angle depend. on index. insert• relief angle depend. on index. insert• with drawbolt thread• to suit interchangeable pilot

Tool material dependent on indexable insert

Surface finish dependent on indexable insert

Discount group

Guhring no.

TypeDIN Guhring std.

Nom.-Ød1

Smallestcutting Ø d2

ThreadG

Short taperKK

Totallength l1

Settingdimension l2

For index. insert size Price per unit (€)

20.00 8.00 M 6 3 56 34.0 060204 230.0023.00 11.00 M 8 4 61 38.0 060204 240.0028.00 10.00 M 8 4 61 38.0 090304 250.0034.00 16.00 M10 5 67 39.5 090304 254.0035.00 17.00 M10 5 67 39.5 090304 254.0036.00 18.00 M10 5 67 39.5 090304 254.0038.00 20.00 M10 5 67 39.5 090304 254.0040.00 15.50 M10 5 67 39.5 120404 272.0041.00 16.50 M10 5 67 39.5 120404 272.0047.00 22.50 M12 5 1/2 68 40.0 120404 348.00

Guhringguide (cutting rates) page

118

104 104 104

1655 1656 1658

SCHX SCHX SCHX

149 149 149

HSS-E

104

1657

SCHX

149

Countersinks

Standard range and technical data

indexable inserts for pilot counterbore Guhring no. 1654Product information

• helix angleGuhring no. 1655 and 1656: 10°Guhring no. 1658: 15°

Indexable insert code:

S squareC standard clearance angle 7°H tolerance class:

insert thickness ± 0.025 mm inscribed circle ± 0.013 verification dimension ± 0.013

X special design indexable insertF sharp cutting edgesR right hand cutting

Tool material/carbide grade carb./k15 carb./P25 carb./k15

Surface finish

Discount group

Guhring no.

DesignationDIN –

for machiningaluminium

bright TiN

Designation/size

Codeno. Price per unit (€)

SCHX 06 02 04 FR 62.040 11.40 12.70 14.30SCHX 09 03 04 FR 93.040 12.40 14.90 15.40SCHX 12 04 04 FR 124.040 16.80 21.50

Guhringguide (cutting rates) page

Product information

• helix angle 10°

Indexable insert code:

S squareC standard clearance angle 7°H tolerance class:

insert thickness ± 0.025 mm inscribed circle ± 0.013 verification dimension ± 0.013

X special design indexable insertF sharp cutting edgesR right hand cutting

Tool material

Surface finish

Discount group

Guhring no.

DesignationDIN –

Designation/size

Codeno. Price per unit (€)

SCHX 06 02 04 FR 62.040 13.80SCHX 09 03 04 FR 93.040 15.40

Guhringguide (cutting rates) page

119

1611

104

1612

140

Countersinks

Accessories for indexable inserts: clamping screws and screwdriversGuhring no.

Discount group

ThreadG

Lengthl1

Torxsize

Codeno. Price per unit (€)

M2.5 6.0 T 8 2.500 2.90M3.5 7.5 T15 3.500 3.10M3.5 9.5 T15 3.501 3.10M4.5 11.5 T15 4.500 3.80

Guhring no.

Discount group

Torxsize

Codeno. Price per unit (€)

T 8 8.000 4.45T15 15.000 4.65

120

HSS

104

1605

KS 120

l1

d1

k10

l2

d2

KK

150

Countersinks

Standard range and technical data

HSS SpotfacersProduct information

• right hand cutting• four-fluted• with unequal tooth spacing 85° and 95°• taper 0.5°• tolerance on Ø k10• helix angle 20°• relief angle 6°• w/o drawbolt thread• to suit interchangeable pilot

Tool material

Surface finish

Discount group

Guhring no.

TypeDIN Guhring std.

bright

Nom.-Ød1

Smallestcutting Ø d2

Short taperKK

Totallength l1

Settingdimension l2

Price per unit (€)

9.00 3.00 1 32 17 40.0010.00 3.00 1 32 17 40.5013.00 4.00 2 37 19 42.5014.00 4.00 2 37 19 44.5015.00 4.00 2 37 19 39.0033.00 6.00 4 50 26 94.0034.00 8.00 5 56 28 104.0035.00 8.00 5 56 28 110.0036.00 9.00 5 56 28 110.0050.00 9.00 5.5 58 30 206.0055.00 9.00 5.5 58 30 244.0057.00 9.00 5.5 58 30 248.0060.00 10.00 6 62 31 310.0065.00 10.00 6 62 31 344.0067.00 10.00 6 62 31 362.00

Guhringguide (cutting rates) page

121

104

1606

KS 100

l1

d1

k10

l2

d2

KK

151

Countersinks

carbide spotfacersProduct information

• right hand cutting• multi-fluted• tolerance on Ø k10• helix angle 0°• relief angle 6°• w/o drawbolt thread• to suit interchangeable pilot

Tool material/carbide grade carbide/k15

Surface finish

Discount group

Guhring no.

TypeDIN Guhring std.

Nom.-Ød1

Smallestcutting Ø d2

Short taperKK

Totallength l1

Settingdimension l2

No. offlutes Price per unit (€)

9.00 4.00 1 32 17.5 3 104.0010.00 3.60 1 32 17.5 3 107.0011.00 4.00 1 32 17.5 3 107.0012.00 3.60 1 32 17.5 3 103.0015.00 5.40 2 37 19.0 4 95.0020.00 6.60 3 45 23.0 4 109.0036.00 9.60 5 56 28.5 4 156.0037.00 9.60 5 56 28.5 4 168.0040.00 9.60 5 56 28.5 4 185.0041.00 9.60 5 56 28.5 4 186.0044.00 9.60 5 56 28.5 4 192.0050.00 10.60 5.5 58 30.0 4 236.0052.00 10.60 5.5 58 30.0 4 248.0055.00 10.60 5.5 58 30.0 4 272.0056.00 10.60 5.5 58 30.0 4 272.0057.00 10.60 5.5 58 30.0 4 276.0060.00 11.80 6 62 31.0 4 330.0065.00 11.80 6 62 31.0 4 354.0066.00 11.80 6 62 31.0 4 354.0067.00 11.80 6 62 31.0 4 362.00

Guhringguide (cutting rates) page

122

1615

104

l1d

1

l2

d2

Art.-Nr. 1624

1624

104

G

Countersinks

Standard range and technical data

Pilots with inclined flat and grub screwProduct information

• Tolerance on Ø e8• for short taper 0

Guhring no.

Discount groupDIN Guhring std.

Nom.-Ø d1from … to

In incrementsof

Shank-Ød3

Total lengthl1

Pilot lengthl2

Code no.from … to Price per unit (€)

1.70 4.50 0.1 1.70 28 5 1.700 4.500 7.802.00 6.00 0.1 2.00 28 5 2.001 6.001 8.602.50 7.00 0.1 2.50 28 5 2.005 7.002 7.80

Guhring no.

Discount groupDIN 551

Thread forshort taper

Codeno. Price per unit (€)

M2.5 0 2.500 0.28

123

1616

104

Art.-Nr. 1621*

l1

d1

l2d3

2 x Art.-Nr. 1620

Countersinks

Pilots complete, with 2 locknutsProduct information

• Tolerance on Ø e8

* protective washer Guhring no. 1621 only necessary for carbide

tipped tools

Guhring no.

Discount groupDIN Guhring std.

Nom.-Ø d1from … to

In incre-ments of

Shank-Ød3

ThreadG

For short taper

Totallength l1

Pilotlength l2

Code no.from … to Price per unit (€)

3.00 8.00 0.1 3.00 M3 1 60 7 3.000 8.000 26.508.10 10.50 0.1 3.00 M3 1 60 7 8.100 10.500 26.504.00 8.00 0.1 4.00 M4 2 71 10 4.001 8.001 26.508.10 10.50 0.1 4.00 M4 2 71 10 8.101 10.501 29.505.00 8.00 0.1 5.00 M5 3 81 10 5.002 8.002 28.508.10 10.50 0.1 5.00 M5 3 81 10 8.102 10.502 31.006.00 10.00 0.1 6.00 M6 4 88 12 6.003 10.003 33.00

10.10 13.00 0.1 6.00 M6 4 88 12 10.103 13.003 34.508.00 11.00 0.5 8.00 M8 5 103 18 8.004 11.004 36.00

11.50 14.00 0.5 8.00 M8 5 103 18 11.504 14.004 39.5014.50 17.00 0.5 8.00 M8 5 103 18 14.504 17.004 42.509.00 13.00 0.5 9.00 M9 51/2 106 20 9.005 13.005 18.10

13.50 16.00 0.5 9.00 M9 51/2 106 20 13.505 16.005 47.5016.50 20.00 0.5 9.00 M9 51/2 106 20 16.505 20.005 51.0010.00 14.00 0.5 10.00 M10 6 110 20 10.006 14.006 62.0014.50 18.00 0.5 10.00 M10 6 110 20 14.506 18.006 70.0018.50 22.00 0.5 10.00 M10 6 110 20 18.506 22.006 80.0012.00 16.00 1.0 12.00 M12 7 124 22 12.007 16.007 75.0017.00 20.00 1.0 12.00 M12 7 124 22 17.007 20.007 83.0021.00 24.00 1.0 12.00 M12 7 124 22 21.007 24.007 91.00

124

1617

104

G

Art.-Nr. 1620

Art.-Nr. 1619

Art.-Nr. 1621*

Art.-Nr. 1618

l1

l2d3

d1

Countersinks

Standard range and technical data

Pilots complete, with pilot sleeve, fixing screw, 2 locknuts, protective washerProduct information

• pilot Ø tolerance e8

* protective washer Guhring no. 1621 only necessary for carbide

tipped tools

Guhring no.

Discount groupDIN Guhring std.

Nom.-Ø d1from … to

In incre-ments of

Shank-Ød3

ThreadG

For short taper

Totallength l1

Pilotlength l2

Code no.from … to Price per unit (€)

11.00 16.00 0.5 4.00 M4 2 71 10 11.000 16.000 31.0011.00 16.00 0.5 5.00 M5 3 81 10 11.001 16.001 33.5016.50 22.00 0.5 5.00 M5 3 81 10 16.501 22.001 35.0013.50 18.00 0.5 6.00 M6 4 88 12 13.502 18.002 41.0018.50 24.00 0.5 6.00 M6 4 88 12 18.502 24.002 41.0024.50 30.00 0.5 6.00 M6 4 88 12 24.502 30.002 41.0017.50 24.00 0.5 8.00 M8 5 103 18 17.503 24.003 57.0024.50 30.00 0.5 8.00 M8 5 103 18 24.503 30.003 60.0030.50 40.00 0.5 8.00 M8 5 103 18 30.503 40.003 60.0020.50 30.00 0.5 9.00 M9 51/2 106 20 20.504 30.004 87.0030.50 40.00 0.5 9.00 M9 51/2 106 20 30.504 40.004 87.0040.50 50.00 0.5 9.00 M9 51/2 106 20 40.504 50.004 99.0024.50 30.00 0.5 10.00 M10 6 110 20 24.505 30.005 87.0030.50 40.00 0.5 10.00 M10 6 110 20 30.505 40.005 99.0040.50 58.00 0.5 10.00 M10 6 110 20 40.505 58.005 113.0028.00 35.00 1.0 12.00 M12 7 120 22 28.006 35.006 128.0036.00 48.00 1.0 12.00 M12 7 124 22 36.006 48.006 139.0049.00 60.00 1.0 12.00 M12 7 124 22 49.006 60.006 158.00

125

1648

104

l1

d1

1649

104

l1

d1

Countersinks

Safety bolts and locknutsGuhring no.

Discount groupDIN Guhring std.

Nom.-Ø d1

Thread Forshort taper

Total lengthl1

Price per unit (€)

6.50 M 4 1 35 7.108.00 M 5 2 40 7.10

10.00 M 6 3 46 9.6012.00 M 8 4 52 9.6015.00 M10 5 59 13.7017.00 M12 51/2 61 13.7019.00 M12 6 66 16.2022.00 M14 7 71 21.50

Guhring no.

Discount groupDIN Guhring std.

Nom.-Ø d1

Thread Forshort taper

Total lengthl1

Price per unit (€)

6.50 M 3 1 8 7.808.00 M 4 2 9 7.10

10.00 M 5 3 11 10.6012.00 M 6 4 14 9.6015.00 M 8 5 14 10.6017.00 M 9 51/2 19 13.7019.00 M10 6 21 15.0022.00 M12 7 30 18.10

126

1625

104

l1

d1

d3

l 2

1627

104

l1

d1

d3

l2

Countersinks

Standard range and technical data

Standard holders, short and long, straight shankGuhring no.

Discount groupDIN –

Nom.-Ø d1

Shank-Ød3

Forshort taper

Total lengthl1

Setting dimensionl2

Price per unit (€)

9.00 6.00 0 59 24 29.5012.50 8.00 1 76 36 35.0017.00 10.00 2 91 41 40.5021.00 12.00 3 109 49 48.0028.00 14.00 4 112 52 60.0032.00 16.00 5 125 65 67.00

Guhring no.

Discount groupDIN –

Nom.-Ø d1

Shank-Ød3

Forshort taper

Total lengthl1

Setting dimensionl2

Price per unit (€)

9.00 6.00 0 85 50 46.0012.00 8.00 1 114 74 46.00

127

1626

104

MKl1

d1

l2

Countersinks

Standard holders, short, Morse taper shankGuhring no.

Discount groupDIN –

Nom.-Ø d1

Morsetaper

Forshort taper

Total lengthl1

Setting dimension l2

Codeno. Price per unit (€)

9.00 1 0 92 30 9.000 47.0012.50 1 1 104 42 12.500 41.5017.00 1 2 109 47 17.000 43.0017.00 2 2 124 49 17.001 55.0021.00 1 3 117 55 21.000 53.0021.00 2 3 132 57 21.001 52.0021.00 3 3 152 58 21.002 65.0028.00 2 4 135 60 28.000 61.0028.00 3 4 155 61 28.001 65.0032.00 2 5 148 73 32.000 75.0032.00 3 5 168 74 32.001 76.0032.00 4 5 193 75 32.002 92.0037.00 3 51/2 178 84 37.000 86.0037.00 4 51/2 203 85 37.001 103.0042.00 3 6 180 86 42.000 118.0042.00 4 6 205 87 42.001 128.0058.00 4 7 220 102 58.000 188.0058.00 5 7 253 102 58.001 189.00

128

1628

104

MKl1

d1

l2

Countersinks

Standard range and technical data

Standard holders, long, Morse taper shankGuhring no.

Discount groupDIN –

Nom.-Ø d1

Morsetaper

Forshort taper

Total lengthl1

Setting dimension l2

Codeno. Price per unit (€)

12.50 1 1 142 80 12.500 47.0017.00 1 2 152 90 17.000 51.0017.00 2 2 167 92 17.001 60.0021.00 1 3 170 108 21.000 64.0021.00 2 3 185 110 21.001 65.0028.00 2 4 190 115 28.000 75.0028.00 3 4 210 116 28.001 77.0032.00 3 5 235 141 32.000 82.0037.00 3 51/2 255 161 37.000 114.0037.00 4 51/2 280 162 37.001 116.0042.00 4 6 285 167 42.000 168.0058.00 5 7 348 198 58.000 262.00

129

1629

104

l1

d1d3

l2

Countersinks

Universal holders with extractor bushesGuhring no.

Discount groupDIN –

Nom.-Ø d1

Shank Ød3

Forshort taper

Total lengthl1

Setting dimension l2

Price per unit (€)

12.50 8.00 1 99 59 66.0018.00 10.00 2 119 69 75.00

130

1630

104

l1

d1

l2MK

Countersinks

Standard range and technical data

Universal holders with extractor bushesGuhring no.

Discount groupDIN –

Nom.-Ø d1

Morsetaper

Forshort taper

Total lengthl1

Setting dimension l2

Codeno. Price per unit (€)

12.50 1 1 127 65 12.500 79.0018.00 1 2 137 75 18.000 87.0018.00 2 2 152 77 18.001 103.0021.00 2 3 164 89 21.001 107.0021.00 3 3 184 90 21.002 122.0028.00 2 4 176 101 28.000 120.0028.00 3 4 196 102 28.001 133.0032.00 2 5 190 115 32.000 137.0032.00 3 5 210 116 32.001 147.0032.00 4 5 235 117 32.002 183.0037.00 3 51/2 215 121 37.000 163.0037.00 4 51/2 240 122 37.001 194.0042.00 3 6 227 133 42.000 198.0042.00 4 6 252 134 42.001 222.0058.00 4 7 280 162 58.000 246.00

131

1650

104

1651

104

Countersinks

tool extractorsProduct information

For short counterbores with pilot

Guhring no.

Discount groupDIN Guhring std.

Nominal size For short taper Code no. Price per unit (€)

size 1 1 1.100 9.30size 2 2 1.200 9.50size 3 3 1.300 9.90size 4 4 1.400 11.20size 5 5 1.500 12.60

size 51/2 51/2 1.550 15.40size 6 6 1.600 16.80size 7 7 1.700 24.00

Product information

For short counterbores without pilot

Guhring no.

Discount groupDIN Guhring std.

Nominal size For short taper Code no. Price per unit (€)

size 0 0 1.000 5.90size 1 1 1.100 10.40size 2 2 1.200 10.40size 3 3 1.300 10.70size 4 4 1.400 13.40size 5 5 1.500 13.00

size 51/2 51/2 1.550 15.80size 6 6 1.600 20.50size 7 7 1.700 21.00

132

HSS

104

1638

RS 115

l1

d1

k8

l2

d4

151

Countersinks

Standard range and technical data

HSS Back spotfacersProduct information

• right hand cutting• four-fluted• tolerance on Ø k8• helix angle:

≤ Ø 20 mm 18°> Ø 20 mm 20°

• relief angle 6°• tolerance on bore Ø P6• bayonet fixing

Tool material

Surface finish

Discount group

Guhring no.

TypeDIN Guhring std.

Nom.-Ød1

Bore-Ød4

Total lengthl1

Flute lengthl2

Price per unit (€)

11.00 5.00 28 15 63.0015.00 6.00 30 16 69.0018.00 8.00 32 18 77.0020.00 8.00 32 18 78.0026.00 11.00 24 16 87.0033.00 13.00 26 18 105.0037.00 17.00 28 18 154.0052.00 21.00 34 22 230.0058.00 25.00 36 24 254.0065.00 28.00 38 26 290.0066.00 28.00 38 26 290.00

100.00 40.00 60 40 610.00110.00 45.00 70 50 790.00115.00 45.00 70 50 890.00

Guhringguide (cutting rates) page

bright

133

104

1640

RS 115

l1

d1

k8

l2

d4

151

Countersinks

carbide back spotfacersProduct information

• right hand cutting• four-fluted• tolerance on Ø k8• helix angle 15°• relief angle 6°• tolerance on bore Ø P6• bayonet fixing

Tool material/carbide grade HM /k20

Surface finish

Discount group

Guhring no.

TypeDIN Guhring std.

Nom.-Ød1

Bore-Ød4

Total lengthl1

Flute lengthl2

Price per unit (€)

43.00 17.00 28 12.5 204.0044.00 19.00 32 14 210.0045.00 19.00 32 14 202.0046.00 19.00 32 14 202.0050.00 21.00 34 17 226.0051.00 21.00 34 17 242.0053.00 21.00 34 17 242.0054.00 21.00 34 17 272.0057.00 25.00 36 18 290.0062.00 25.00 36 18 330.0064.00 28.00 38 19 376.0066.00 28.00 38 19 380.0068.00 28.00 38 19 400.0071.00 28.00 38 19 406.0076.00 30.00 50 24 470.0080.00 30.00 50 24 494.0085.00 35.00 50 24 580.0095.00 40.00 60 26 690.00

100.00 40.00 60 26 720.00110.00 45.00 70 26 840.00115.00 45.00 70 26 890.00

Guhringguide (cutting rates) page

134

1641

104

l1

d3

l2

l3

d1

d2

Countersinks

Standard range and technical data

Holders for back spotfacersGuhring no.Discount group

DIN Guhring std.

Nom.-Ød1

Spigot-Ød2

Shank-Ød3

Total lengthl1

Working length l2

Spigot length l3

Codeno. Price per unit (€)

5.30 5.00 8.00 162 105 34.5 5.300 71.005.50 5.00 8.00 162 105 34.5 5.500 62.006.40 5.00 8.00 162 105 34.5 6.400 71.006.60 5.00 8.00 162 105 34.5 6.600 65.007.00 5.00 8.00 162 105 34.5 7.000 64.008.40 6.00 10.00 162 105 36.5 8.400 66.008.40 8.00 12.00 182 125 38.5 8.401 67.009.00 6.00 10.00 162 105 36.5 9.000 66.009.00 8.00 12.00 182 125 38.5 9.001 75.009.50 6.00 10.00 162 105 36.5 9.500 66.00

10.00 8.00 12.00 182 125 38.5 10.000 70.0010.50 8.00 12.00 182 125 38.5 10.500 68.0011.00 8.00 12.00 182 125 38.5 11.000 64.0011.50 8.00 12.00 182 125 38.5 11.500 70.0012.00 8.00 12.00 182 125 38.5 12.000 68.0013.00 8.00 12.00 182 125 38.5 13.000 68.0013.50 8.00 12.00 182 125 38.5 13.500 68.0014.00 8.00 12.00 182 125 38.5 14.000 64.00

Guhringguide (cutting rates) page

135

1642

104

MK

d1

l1

l2

d2

l3

Countersinks

Holders for back spotfacers Product information

Slot ≥ Morse taper 3 to DIN 1806

Guhring no.Discount group

DIN Guhring std.

Nom.-Ød1

Spigot-Ød2

Morsetaper

Total lengthl1

Working length l2

Spigot length l3

Codeno. Price per unit (€)

5.30 5.00 1 167 105 34.5 5.300 80.006.40 5.00 1 167 105 34.5 6.400 80.006.60 5.00 1 167 105 34.5 6.600 76.008.40 6.00 1 167 105 36.5 8.400 80.008.40 8.00 2 200 125 38.5 8.401 94.009.00 6.00 1 167 105 36.5 9.000 69.009.00 8.00 2 200 125 38.5 9.001 88.00

10.00 8.00 2 200 125 38.5 10.000 85.0010.50 8.00 2 200 125 38.5 10.500 85.0011.00 8.00 2 200 125 38.5 11.000 80.0011.50 8.00 2 200 125 38.5 11.500 86.0012.00 8.00 2 200 125 38.5 12.000 85.0012.00 11.00 3 259 165 31.5 12.002 124.0013.00 8.00 2 200 125 38.5 13.000 85.0013.00 11.00 3 259 165 31.5 13.002 124.0013.50 8.00 2 200 125 38.5 13.500 85.0013.50 11.00 3 259 165 31.5 13.502 129.0014.00 8.00 2 200 125 38.5 14.000 80.0014.00 11.00 3 259 165 31.5 14.002 122.0015.00 11.00 3 259 165 31.5 15.001 129.0015.00 13.00 3 280 186 33.5 15.002 129.0015.50 11.00 3 259 165 31.5 15.500 118.0015.50 13.00 3 280 186 33.5 15.501 129.0016.00 11.00 3 259 165 31.5 16.001 129.0016.00 13.00 3 280 186 33.5 16.002 129.0017.00 11.00 3 259 165 31.5 17.000 113.0017.00 13.00 3 280 186 33.5 17.001 129.0017.50 11.00 3 259 165 31.5 17.500 118.0015.50 13.00 3 280 186 33.5 17.501 133.0018.00 11.00 3 259 165 31.5 18.000 111.0018.00 13.00 3 280 186 33.5 18.001 126.0019.00 11.00 3 259 165 31.5 19.000 118.0019.00 13.00 3 280 186 33.5 19.001 133.0019.00 17.00 3 301 207 36.5 19.002 134.0020.00 11.00 3 259 165 31.5 20.000 119.0020.00 13.00 3 280 186 33.5 20.001 140.0020.00 17.00 3 301 207 36.5 20.002 140.0021.00 13.00 3 280 186 33.5 21.000 129.0021.00 17.00 3 301 207 36.5 21.001 140.00

136

1642

104

Countersinks

Standard range and technical data

Guhring no.Discount group

Nom.-Ød1

Spigot-Ød2

Morsetaper

Total lengthl1

Working length l2

Spigot length l3

Codeno. Price per unit (€)

22.00 13.00 3 280 186 33.5 22.000 114.0022.00 17.00 3 301 207 36.5 22.001 126.0022.00 19.00 3 321 227 41.0 22.002 139.0023.00 13.00 3 280 186 33.5 23.000 121.0023.00 17.00 3 301 207 36.5 23.001 128.0023.00 19.00 3 321 227 41.0 23.002 132.0024.00 13.00 3 280 186 33.5 24.000 121.0024.00 17.00 3 301 207 36.5 24.001 140.0024.00 19.00 3 321 227 41.0 24.002 145.0024.00 21.00 4 364 246 43.0 24.003 180.0025.00 13.00 3 280 186 33.5 25.000 123.0025.00 17.00 3 301 207 36.5 25.001 140.0025.00 19.00 3 321 227 41.0 25.002 145.0025.00 21.00 4 364 246 43.0 25.003 163.0026.00 17.00 3 301 207 36.5 26.000 121.0026.00 19.00 3 321 227 41.0 26.001 134.0026.00 21.00 4 364 246 43.0 26.002 172.0027.00 17.00 3 301 207 36.5 27.000 128.0028.00 17.00 3 301 207 36.5 28.000 127.0028.00 19.00 3 321 227 41.0 28.001 139.0028.00 21.00 4 364 246 43.0 28.002 163.0028.00 25.00 4 385 267 45.0 28.003 165.0030.00 17.00 3 301 207 36.5 30.000 128.0030.00 19.00 3 321 227 41.0 30.001 145.0030.00 21.00 4 364 246 43.0 30.002 173.0030.00 25.00 4 385 267 45.0 30.003 181.0032.00 19.00 3 321 227 41.0 32.000 133.0032.00 21.00 4 364 246 43.0 32.001 165.0032.00 25.00 4 385 267 45.0 32.002 184.0032.00 28.00 4 405 287 48.0 32.003 202.0033.00 19.00 3 321 227 41.0 33.000 132.0033.00 21.00 4 364 246 43.0 33.001 158.0033.00 25.00 4 385 267 45.0 33.002 163.0033.00 28.00 4 405 287 48.0 33.003 182.0033.00 30.00 5 460 310 56.0 33.004 252.0035.00 21.00 4 364 246 43.0 35.000 183.0035.00 25.00 4 385 267 45.0 35.001 189.0035.00 28.00 4 405 287 48.0 35.002 183.0036.00 21.00 4 364 246 43.0 36.000 157.0036.00 25.00 4 385 267 45.0 36.001 172.0036.00 28.00 4 405 287 48.0 36.002 202.0036.00 30.00 5 460 310 56.0 36.003 264.0036.00 35.00 5 460 310 56.0 36.004 240.0039.00 25.00 4 385 267 45.0 39.000 167.0039.00 28.00 4 405 287 48.0 39.001 167.0039.00 35.00 5 460 310 56.0 39.002 252.0040.00 28.00 4 405 287 48.0 40.000 183.0042.00 28.00 4 405 287 48.0 42.000 204.0042.00 30.00 5 460 310 56.0 42.001 228.0042.00 35.00 5 460 310 56.0 42.002 240.0042.00 40.00 5 480 330 66.0 42.003 246.0045.00 28.00 4 405 287 48.0 45.000 176.0045.00 35.00 5 460 310 56.0 45.001 240.0045.00 40.00 5 480 330 66.0 45.002 244.0048.00 35.00 5 460 310 56.0 48.000 258.0048.00 40.00 5 480 330 66.0 48.001 246.0048.00 45.00 5 480 330 76.0 48.002 278.0052.00 40.00 5 480 330 66.0 52.000 254.0052.00 45.00 5 480 330 76.0 52.001 262.0056.00 45.00 5 480 330 76.0 56.000 274.0062.00 45.00 5 480 330 76.0 62.000 282.00

Gu

hri

ng

gu

ide

• Reaming from page 138

• Countersinking from page 144

• Troubleshooting page 152

GUHRINGGUIDE

138

HSS-E

– –

12 14

455 490

≤330 HB

≤40-48 HRC>48-60 HRC

≤240 HB<300 HB≤240 HB<300 HB≤350 HB

––––

≤500>500-850≤850850-1000≤ 700700-850850-1000850-10001000-1200≤750850-10001000-1200≥850-10001000-1200≤850850-1000≥650-1000

≤850≤850≤850

≤1200

≤850 850-1200≤400≤450≤600≤600≤450≤400≤600≤600≤600>600-850≤850850-100

vcm/min

16121210141210108

16108

108

141010

664

414121210

64

1818201820181816201818141214108

7272727172717171717271717171727171

727272

7171717171

717173737272727272727272727273737373

HSS-E

A B C C B/D D A B

16 16 18/16 18 17 18 20 20

401 402 440 1431 496 468

457 467

404 405

vcm/min

16121210141210108

16108

108

141010

664

414121210

64

1818201820181816201818141214108

72 7371 74 75

Reamers and Countersinks

Tools with bold feed column no. are preferred choice.

For blind holes with close diameter tolerances choose straight-fluted reamers.

For exact definition of tools please refer to the“Standard range and technical data” pages.

soluble oilneat oilair

Coolant:

Tool material

Form

Surface finish

Std. range & tech. data p.

DIN 212

DIN 8089

Guhring std.

DIN 208

Guhring std.

right hand cutting

left hand cutting

bright TiNwith internal coolingwithout internal cooling

feed col. no.

feed column no.

MT

str.

sh

ank

Gu

hri

ng

no.

Material examplesFigures in bold = material no. to DIN EN 10 027

Material group Tensile strengthN/mm2

Cool-ant

1.0035 S185, 1.0486 StE P275N, 1.0345 P235GH, 1.0425 P265GH1.0050 E295, 1.0070 E360, 1.8937 P500NH1.0718 11SMnPb30, 1.0736 115Mn371.0727 46 S20, 1.0728 60 S20, 1.0757 46SPb201.0402 C22, 1.1178 C30E1.0503 C45, 1.1191 C45E1.0601 C60, 1.1221 C60E1.5131 50MnSi4, 1.7003 38Cr2, 1.7030 28Cr41.5710 36NiCr6, 1.7035 41Cr4, 1.7225 42CrMo41.0301 C10, 1.1121 C10E1.7043 38Cr41.5752 14NiCr14, 1.7131 16MnCr5, 1.7264 20CrMo51.8504 34CrAl61.8519 31CrMoV9, 1.8550 34CrAlNi71.1750 C75W, 1.2067 102Cr6, 1.2307 29CrMoV91.2080 X210Cr12, 1.2083 X42Cr13, 1.2419 105WCr6, 1.2767 X45NiCrMo41.3243 S 6-5-2-5, 1.3343 S 6-5-2, 1.3344 61CrV41.5026 55Si7, 1.7176 55Cr3, 1.8159 51CrV41.4005 X12CrS13, 1.4104 X14CrMoS17, 1.4105 X6CrMoS17, 1.4305 X8CrNiS18 91.4301 X5CrNi18 10, 1.4541 X6CrNiTi18 10, 1.4571 X6CrNiMoTi 17 12 21.4057 X17CrNi16-1, 1.4122 X39CrMo17-1, 1.4521 X2CrMoTi18 2–

Nimonic, Inconel, Monel, HastelloyEN-GJL-100 ... EN-GJL-200 (previously GG10 ... GG20)EN-GJL-250 ... EN-GJL-350 (previously GG25 ... GG45)EN-GJMW-350-4, EN-GJMB-550-4, EN-GJS-500-7 (prev. GTW35, GTS55, GGG50)EN-GJMB-700-2, EN-GJS-700-2 (prev.GTW65, GTS70, GGG70)–3.7024 Ti99,5, 3.7114 TiAl5Sn2,5, 3.7124 TiCu23.7154 TiAl6Zr5, 3.7164 TiAl6V4, 3.7184 TiAl4Mo4Sn2,5, - TiAl8Mo1V13.0255 Al99,5, 3.2315 AlMgSi1, 3.3515 AlMg13.0615 AlMgSiPb, 3.1325 AlCuMg1, 3.3245 AlMg3Si, 3.4365 AlZnMgCu1,53.2131 G-AlSi5Cu1, 3.2153 G-AlSi7Cu3, 3.2573 G-AlSi93.2581 G-AlSi12, 3.2583 G-AlSi12Cu, - G-AlSi12CuNiMgMgMn2, G-MgAl8Zn1, G-MgAl6Zn32.0070 SE-Cu, 2.1020 CuSn6, 2.1096 G-CuSn5ZnPb2.0380 CuZn39Pb2, 2.0401 CuZn39Pb3, 2.0410 CuZn43Pb22.0250 CuZn20, 2.0280 CuZn33, 2.0332 CuZn37Pb0,52.1090 CuSn7ZnPb, 2.1170 CuPb5Sn5, 2.1176 CuPb10Sn2.0790 CuNi18Zn19Pb2.0916 CuAl5, 2.0960 CuAl9Mn, 2.1050 CuSn102.0980 CuAl11Ni, 2.1247 CuBe2Bakelit, Resopal, Pertinax, MoltoprenPlexiglass, Hostalen, Novodur, MakralonKevlarGFK/CFK

Common structural steels

Free-cutting steels

Unalloyed heat-treatable steels

Alloyed heat-treatable steels

Unalloyed case hardened steelsAlloyed case hardened steels

Nitriding steels

Tool steels

High speed steelsSpring steelsStainless steels, sulphured austenitic martensiticHardened steels

Special alloysCast iron

Spheroidal graphite and malleable cast ironChilled cast ironTi and Ti-alloys

Aluminium and Al-alloysAl wrought alloysAl cast iron ≤ 10 % Si > 10 % SiMagnesium alloysCopper, low-alloyedBrass, short-chipping long-chippingBronze, short-chipping

Bronze, long-chipping

DuroplasticsThermoplasticsKevlarGlass, carbon concent. plastics

Hard-ness

ReamingGUHRINGGUIDEnc machine

chucking reamers

Machine chuckingreamers

< 4.004.005.006.308.00

10.0012.5016.0020.0025.0031.5040.0050.00

> 50.00

0.0800.1000.1000.1250.1600.2000.2000.2500.3150.4000.4000.5000.6300.800

0.1000.1250.1250.1600.2000.2500.2500.3150.4000.5000.5000.6300.8001.000

0.1250.1600.1600.2000.2500.3150.3150.4000.5000.6300.6300.8001.0001.250

Reamer-Ø

mmf (mm/rev.)

feed column no.

0.3000.3000.4000.4000.6000.6000.8000.8000.8001.0001.0001.2001.4001.600

0.5000.5000.7001.0001.4001.4001.8002.2002.2002.5003.0003.0003.0003.000

139

vcm/min

108

1412101010108

12108

108888

644

312101210

43

20202018141418161614161412101212

7171717171717171717171717171717171

717171

7171717171

717172727171717171717171717173737373

HSS-E

A B C C B/D D A B

16 16 18/16 18 17 18 20 20

401 402 440 1431 496 468

457 467

404 405

HSS-E

D B

18 20

641

642

vcm/min

2016161218161212101812101210161212

886

616141614

64

22222222222022182220201812141210

HSS-E

A A B B

23 23 23 24

488 1432 489 497

vcm/min

16121210141210108

16108

108

141010

664

414121210

64

1818201820181816201818141214108

7171717171717171717171717171717171

717171

7171717171

717173737272727272727272727273737373

HSS-E

E – C

26 26 27

469 403

406

vcm/min

161212

1412

16

10

5

222220

16

18

1214

737373

7373

73

73

71

737373

73

73

7373

HSS-E

– –

29 30

419

420

7272727172717171717271717171727171

727272

7171717171

717173737272727272727272727273737373

7171717171717171717171717171717171

717171

7171717171

717173737272727272727272727273737373

Reamers and Countersinks

feed column no.feed

col. no.feed column no. feed column no. feed column no.

Machine chuckingreamers

Machinereamers

quick spiralreamers

Bottomingreamers

140

– –

42 43

1685 1686

≤330 HB

≤40-48 HRC>48-60 HRC

≤240 HB<300 HB≤240 HB<300 HB≤350 HB

––––

≤500>500-850≤850850-1000≤ 700700-850850-1000850-10001000-1200≤750850-10001000-1200≥850-10001000-1200≤850850-1000≥650-1000

≤850≤850≤850

≤1200

≤850 850-1200≤400≤450≤600≤600≤450≤400≤600≤600≤600>600-850≤850850-100

vcm/min

120-250120-250120-250120-250120-250120-250120-250120-250120-250120-250120-250120-250120-250120-250120-250120-250

60-12060-12060-12060-12060-12025-60

25-6060-14060-140

120-25060-120

10-4030-6030-60

80-160

100-250

100-250100-250

80-20080-20080-20080-200

74-7574-7574-7574-7574-7574-7574-7574-7574-7574-7574-7574-7574-7574-7574-7574-7574-7573-7474-7574-7574-7573-74

73-7474-7574-7574-7574-7573-7473-7473-75

74-75

74-75

74-7574-75

74-7574-7574-7574-75

72 7371

– –

44 46

1427 1449

vcm/min

181618161816141412181412141212101010866

6201820184

101030304030252535303530302520202020

7272727271717171717171717171717171

717171

7171717171

717173737272727272727272727273737373

74 75

Reamers and Countersinks

Tool material/Carbide grade

Form

Surface finish

Std. range & tech. data p.

DIN 8050

DIN 8090

DIN 8093

Guhring std.

DIN 8051

DIN 8054

DIN 8094

Guhring std.

bright

TiAlN

MT

str.

sh

ank

Gu

hri

ng

no.

Tools with bold feed column no. are preferred choice.

For blind holes with close diameter tolerances choose straight-fluted reamers.

For exact definition of tools please refer to the“Standard range and technical data” pages.

soluble oilneat oilair

Coolant:

< 4.004.005.006.308.00

10.0012.5016.0020.0025.0031.5040.0050.00

> 50.00

0.0800.1000.1000.1250.1600.2000.2000.2500.3150.4000.4000.5000.6300.800

0.1000.1250.1250.1600.2000.2500.2500.3150.4000.5000.5000.6300.8001.000

0.1250.1600.1600.2000.2500.3150.3150.4000.5000.6300.6300.8001.0001.250

Reamer-Ø

mmf (mm/rev.)

feed column no.

Material examplesFigures in bold = material no. to DIN EN 10 027

Material group Tensile strengthN/mm2

Cool-ant

1.0035 S185, 1.0486 StE P275N, 1.0345 P235GH, 1.0425 P265GH1.0050 E295, 1.0070 E360, 1.8937 P500NH1.0718 11SMnPb30, 1.0736 115Mn371.0727 46 S20, 1.0728 60 S20, 1.0757 46SPb201.0402 C22, 1.1178 C30E1.0503 C45, 1.1191 C45E1.0601 C60, 1.1221 C60E1.5131 50MnSi4, 1.7003 38Cr2, 1.7030 28Cr41.5710 36NiCr6, 1.7035 41Cr4, 1.7225 42CrMo41.0301 C10, 1.1121 C10E1.7043 38Cr41.5752 14NiCr14, 1.7131 16MnCr5, 1.7264 20CrMo51.8504 34CrAl61.8519 31CrMoV9, 1.8550 34CrAlNi71.1750 C75W, 1.2067 102Cr6, 1.2307 29CrMoV91.2080 X210Cr12, 1.2083 X42Cr13, 1.2419 105WCr6, 1.2767 X45NiCrMo41.3243 S 6-5-2-5, 1.3343 S 6-5-2, 1.3344 61CrV41.5026 55Si7, 1.7176 55Cr3, 1.8159 51CrV41.4005 X12CrS13, 1.4104 X14CrMoS17, 1.4105 X6CrMoS17, 1.4305 X8CrNiS18 91.4301 X5CrNi18 10, 1.4541 X6CrNiTi18 10, 1.4571 X6CrNiMoTi 17 12 21.4057 X17CrNi16-1, 1.4122 X39CrMo17-1, 1.4521 X2CrMoTi18 2–

Nimonic, Inconel, Monel, HastelloyEN-GJL-100 ... EN-GJL-200 (previously GG10 ... GG20)EN-GJL-250 ... EN-GJL-350 (previously GG25 ... GG45)EN-GJMW-350-4, EN-GJMB-550-4, EN-GJS-500-7 (prev. GTW35, GTS55, GGG50)EN-GJMB-700-2, EN-GJS-700-2 (prev.GTW65, GTS70, GGG70)–3.7024 Ti99,5, 3.7114 TiAl5Sn2,5, 3.7124 TiCu23.7154 TiAl6Zr5, 3.7164 TiAl6V4, 3.7184 TiAl4Mo4Sn2,5, - TiAl8Mo1V13.0255 Al99,5, 3.2315 AlMgSi1, 3.3515 AlMg13.0615 AlMgSiPb, 3.1325 AlCuMg1, 3.3245 AlMg3Si, 3.4365 AlZnMgCu1,53.2131 G-AlSi5Cu1, 3.2153 G-AlSi7Cu3, 3.2573 G-AlSi93.2581 G-AlSi12, 3.2583 G-AlSi12Cu, - G-AlSi12CuNiMgMgMn2, G-MgAl8Zn1, G-MgAl6Zn32.0070 SE-Cu, 2.1020 CuSn6, 2.1096 G-CuSn5ZnPb2.0380 CuZn39Pb2, 2.0401 CuZn39Pb3, 2.0410 CuZn43Pb22.0250 CuZn20, 2.0280 CuZn33, 2.0332 CuZn37Pb0,52.1090 CuSn7ZnPb, 2.1170 CuPb5Sn5, 2.1176 CuPb10Sn2.0790 CuNi18Zn19Pb2.0916 CuAl5, 2.0960 CuAl9Mn, 2.1050 CuSn102.0980 CuAl11Ni, 2.1247 CuBe2Bakelit, Resopal, Pertinax, MoltoprenPlexiglass, Hostalen, Novodur, MakralonKevlarGFK/CFK

Common structural steels

Free-cutting steels

Unalloyed heat-treatable steels

Alloyed heat-treatable steels

Unalloyed case hardened steelsAlloyed case hardened steels

Nitriding steels

Tool steels

High speed steelsSpring steelsStainless steels, sulphured austenitic martensiticHardened steels

Special alloysCast iron

Spheroidal graphite and malleable cast ironChilled cast ironTi and Ti-alloys

Aluminium and Al-alloysAl wrought alloysAl cast iron ≤ 10 % Si > 10 % SiMagnesium alloysCopper, low-alloyedBrass, short-chipping long-chippingBronze, short-chipping

Bronze, long-chipping

DuroplasticsThermoplasticsKevlarGlass, carbon concent. plastics

Hard-ness

ReamingGUHRINGGUIDE

0.3000.3000.4000.4000.6000.6000.8000.8000.8001.0001.0001.2001.4001.600

0.5000.5000.7001.0001.4001.4001.8002.2002.2002.5003.0003.0003.0003.000

HR 500reamers

feed col. no.

carb./k10

nc machine

chucking reamers

feed col. no.

carb./k10

141

vcm/min

20202020202016181420181418141812148

141210

822182018

101030303525252535303025302520201412

727272727171717171727171717171717171717171

7171717171

717173737373737373737373737373737373

A B A B A B A B

48 48 49 49 50 50 51 51

717 718

1408 1409

719 720

1410 1411

vcm/min

181618161816141412181412141212101010866

6201820184

101030304030252535303530302520202020

A B

48 48

1428 1429

vcm/min

201820182018151513201513151313111111977

7222022204

111133334433282839333933332822222222

737373737272727271737271717171717171717171

717373737371717173737373737373737373737373737373

A A

52 53

749

740

vcm/min

1614141214121212101412101210101088866

620182020

488

25253530202030253025252016162020

717171717171717171717171717171717171717171

717171717171717172727272727272727272727273737373

A B C

54 54 54

674 1407 737

vcm/min

2018201820181616122016141614141212

866

620182020

10103030403025353530302530251214108

7272727271717171717171717171717171

717171

7171717171

717173737272727272727272727273737373

A

54

1430

vcm/min

2220222022201818132218151815151313

977

722202222

11113333443328393933332833281315119

7272727271717171717171717171717171

717171

7171717171

717173737272727272727272727273737373

56

727

7272727271717171717171717171717171

717171

7171717171

717173737272727272727272727273737373

55

743

vcm/min

181618161816141412181412141212101010

620182018

101030304030252535303530302520202020

737373737272727271737271717171717171

7173737373

717173737373737373737373737373737373

– –

44 46

1427 1449

Reamers and Countersinks

Machine chuckingreamers

Machinereamers

Expandingreamers

stepped Shellreamer

feed column no.feed

col. no.feed

col. no.feed

col. no.feed column no.

feed col. no.

feed col. no.

carb./k10 carb./k10 carb./k10 carb./k10 carb./k10 carb./k10carb./k10

nc machine

chucking reamers

142

≤330 HB

≤40-48 HRC>48-60 HRC

≤240 HB<300 HB≤240 HB<300 HB≤350 HB

––––

≤500>500-850≤850850-1000≤ 700700-850850-1000850-10001000-1200≤750850-10001000-1200≥850-10001000-1200≤850850-1000≥650-1000

≤850≤850≤850

≤1200

≤850 850-1200≤400≤450≤600≤600≤450≤400≤600≤600≤600>600-850≤850850-100

vcm/min

141212101210886

128686

1284

544

312101210

43

18181816181618162016161412101010

7272727271717171717271717171717171

717171

7171717171

717173737372737272727272727272727272

vcm/min

16121210141210108

16108

108

141010

644

314121210

43

18182018201418161614161412121210

HSS-E

31

430

HSS

28

414

72 7371 74 75

Reamers and Countersinks

Tool material

Form

Surface finish

Std. range & tech. data p.

DIN 9

DIN 2179

DIN 219

DIN 311

DIN 2180

Guhring std.

MT

zyl.

Gu

hri

ng

no.

bright

steam tempered

nitrided

feed col. no.

feed col. no.

Tools with bold feed column no. are preferred choice.

For blind holes with close diameter tolerances choose straight-fluted reamers.

For exact definition of tools please refer to the“Standard range and technical data” pages.

soluble oilneat oilair

Coolant:

Material examplesFigures in bold = material no. to DIN EN 10 027

Material group Tensile strengthN/mm2

Cool-ant

1.0035 S185, 1.0486 StE P275N, 1.0345 P235GH, 1.0425 P265GH1.0050 E295, 1.0070 E360, 1.8937 P500NH1.0718 11SMnPb30, 1.0736 115Mn371.0727 46 S20, 1.0728 60 S20, 1.0757 46SPb201.0402 C22, 1.1178 C30E1.0503 C45, 1.1191 C45E1.0601 C60, 1.1221 C60E1.5131 50MnSi4, 1.7003 38Cr2, 1.7030 28Cr41.5710 36NiCr6, 1.7035 41Cr4, 1.7225 42CrMo41.0301 C10, 1.1121 C10E1.7043 38Cr41.5752 14NiCr14, 1.7131 16MnCr5, 1.7264 20CrMo51.8504 34CrAl61.8519 31CrMoV9, 1.8550 34CrAlNi71.1750 C75W, 1.2067 102Cr6, 1.2307 29CrMoV91.2080 X210Cr12, 1.2083 X42Cr13, 1.2419 105WCr6, 1.2767 X45NiCrMo41.3243 S 6-5-2-5, 1.3343 S 6-5-2, 1.3344 61CrV41.5026 55Si7, 1.7176 55Cr3, 1.8159 51CrV41.4005 X12CrS13, 1.4104 X14CrMoS17, 1.4105 X6CrMoS17, 1.4305 X8CrNiS18 91.4301 X5CrNi18 10, 1.4541 X6CrNiTi18 10, 1.4571 X6CrNiMoTi 17 12 21.4057 X17CrNi16-1, 1.4122 X39CrMo17-1, 1.4521 X2CrMoTi18 2–

Nimonic, Inconel, Monel, HastelloyEN-GJL-100 ... EN-GJL-200 (previously GG10 ... GG20)EN-GJL-250 ... EN-GJL-350 (previously GG25 ... GG45)EN-GJMW-350-4, EN-GJMB-550-4, EN-GJS-500-7 (prev. GTW35, GTS55, GGG50)EN-GJMB-700-2, EN-GJS-700-2 (prev.GTW65, GTS70, GGG70)–3.7024 Ti99,5, 3.7114 TiAl5Sn2,5, 3.7124 TiCu23.7154 TiAl6Zr5, 3.7164 TiAl6V4, 3.7184 TiAl4Mo4Sn2,5, - TiAl8Mo1V13.0255 Al99,5, 3.2315 AlMgSi1, 3.3515 AlMg13.0615 AlMgSiPb, 3.1325 AlCuMg1, 3.3245 AlMg3Si, 3.4365 AlZnMgCu1,53.2131 G-AlSi5Cu1, 3.2153 G-AlSi7Cu3, 3.2573 G-AlSi93.2581 G-AlSi12, 3.2583 G-AlSi12Cu, - G-AlSi12CuNiMgMgMn2, G-MgAl8Zn1, G-MgAl6Zn32.0070 SE-Cu, 2.1020 CuSn6, 2.1096 G-CuSn5ZnPb2.0380 CuZn39Pb2, 2.0401 CuZn39Pb3, 2.0410 CuZn43Pb22.0250 CuZn20, 2.0280 CuZn33, 2.0332 CuZn37Pb0,52.1090 CuSn7ZnPb, 2.1170 CuPb5Sn5, 2.1176 CuPb10Sn2.0790 CuNi18Zn19Pb2.0916 CuAl5, 2.0960 CuAl9Mn, 2.1050 CuSn102.0980 CuAl11Ni, 2.1247 CuBe2Bakelit, Resopal, Pertinax, MoltoprenPlexiglass, Hostalen, Novodur, MakralonKevlarGFK/CFK

Common structural steels

Free-cutting steels

Unalloyed heat-treatable steels

Alloyed heat-treatable steels

Unalloyed case hardened steelsAlloyed case hardened steels

Nitriding steels

Tool steels

High speed steelsSpring steelsStainless steels, sulphured austenitic martensiticHardened steels

Special alloysCast iron

Spheroidal graphite and malleable cast ironChilled cast ironTi and Ti-alloys

Aluminium and Al-alloysAl wrought alloysAl cast iron ≤ 10 % Si > 10 % SiMagnesium alloysCopper, low-alloyedBrass, short-chipping long-chippingBronze, short-chipping

Bronze, long-chipping

DuroplasticsThermoplasticsKevlarGlass, carbon concent. plastics

Hard-ness

ReamingGUHRINGGUIDEExpanding mach. reamers

Machinebridge reamers

< 4.004.005.006.308.00

10.0012.5016.0020.0025.0031.5040.0050.00

> 50.00

0.0800.1000.1000.1250.1600.2000.2000.2500.3150.4000.4000.5000.6300.800

0.1000.1250.1250.1600.2000.2500.2500.3150.4000.5000.5000.6300.8001.000

0.1250.1600.1600.2000.2500.3150.3150.4000.5000.6300.6300.8001.0001.250

Reamer-Ø

mmf (mm/rev.)

feed column no.

0.3000.3000.4000.4000.6000.6000.8000.8000.8001.0001.0001.2001.4001.600

0.5000.5000.7001.0001.4001.4001.8002.2002.2002.5003.0003.0003.0003.000

143

vcm/min

16141410

20202018201820

1214

73737373

73737373737373

7373

7171717171717171717271717171717171

717171

7171717171

717172727171717171717171717173737373

HSS-E

31

430

HSS-E

32

431

HSS-E

A B

33 33

407 408

HSS-E

C

33

409

HSS-E

– –

67 68

410

411

vcm/min

1412121012121010101410101010121010

855

314121412

54

18182220201618161614161412121212

7272727272727171717271717171717171

717171

7171717171

717173737373737373737373737373737373

vcm/min

16141210161410108

16108

108

141010

644

414121210

64

1818201820181816201818141214108

7171717171717171717171717171717171

717171

7171717171

717172727272727272727272727272727272

vcm/min

88888888886666666

666

66666

668888888888888888

7272727271717171717271717171717171

717171

7171717171

717173737372737272727272727272727272

Reamers and Countersinks

feed col. no.

feed col. no. feed column no.

feed col. no.

feed column no.

Expanding mach. reamers

Steppedmach. reamers

Shellreamers

Machine taper pinreamers

144

≤330 HB

≤40-48 HRC>48-60 HRC

≤240 HB<300 HB≤240 HB<300 HB≤350 HB

––––

≤500>500-850≤850850-1000≤ 700700-850850-1000850-10001000-1200≤750850-10001000-1200≥850-10001000-1200≤850850-1000≥650-1000

≤850≤850≤850

≤1200

≤850 850-1200≤400≤450≤600≤600≤450≤400≤600≤600≤600>600-850≤850850-100

vcm/min

323032303230201512251510151217151510161214868

25162220

8151090704030

1006080503026242030407040

vcm/min

353335333533221713281711171319171711181315979

28182422

9171199774433

1106688553329262233447744

vcm/min

373537353735231714291712171420171712181416979

29182523

91712

104814635

1156992583530282335468146

HSS

90° 60° 90° 120°

– – – – – – A B C D A B C C C D D A B C D

90 90 91 91 92 92 82 82 83 83 84 84 85 85 85 87 87 88 88 89 89

470 471 472 473

474 475 476 1326 327 477 328

478 479

436 1318 437 1319 438 1323

480 481

2 (2…5)3 (6…19)

2 (5)3 (6…19)

3 3 3 3 5 (8/12,5)7 (16/20)

7 (16)9 (25/31,5)

11 (40)17 (100)

3 3 5 (8/12,5)7 (16/20)

7 (16/20)9 (25/31,5)

11 (40)13 (50)15 (63)

17 (80/100)

3 3 3 3 3 5 (8/12,5)7 (16/20)

7 (20)9 (25)11 (40)

17 (100)

3 3

8382838282828282818382818281828181818281818181818282828181838283848383848282828484848482828282

Reamers and Countersinks

Gu

hri

ng

no.

Counter-sink Ømm

feed column no.81 82 83 84

f (mm/rev.)2,00 0,03 0,04 0,06 0,082,50 0,03 0,05 0,07 0,103,15 0,03 0,05 0,08 0,114,00 0,04 0,06 0,09 0,135,00 0,04 0,07 0,10 0,146,30 0,04 0,07 0,12 0,158,00 0,05 0,08 0,13 0,16

10,00 0,06 0,09 0,14 0,1712,50 0,06 0,10 0,15 0,1916,00 0,07 0,11 0,17 0,2120,00 0,08 0,13 0,18 0,2325,00 0,09 0,15 0,21 0,2631,50 0,12 0,17 0,24 0,3040,00 0,14 0,21 0,28 0,3450,00 0,17 0,24 0,31 0,3663,00 0,20 0,27 0,33 0,3880,00 0,23 0,30 0,35 0,40

100,00 0,25 0,30 0,35 0,40

Tool material

Angle of taper

Form

Std. range & tech. data p.

DIN 334

DIN 335

DIN 347

DIN 1866

Guhring std.

No. of flutes (Ø-range)

bright

steam tempered

TiN

TiAlN

feed column no.

Tools with bold feed column no. are preferred choice.

For exact definition of tools please refer to the“Standard range and technical data” pages.

For multi-fluted countersinking tools the Ø-range for the respective flute no. is in brackets.

Material examplesFigures in bold = material no. to DIN EN 10 027

Material group Tensile strengthN/mm2

Cool-ant

1.0035 S185, 1.0486 StE P275N, 1.0345 P235GH, 1.0425 P265GH1.0050 E295, 1.0070 E360, 1.8937 P500NH1.0718 11SMnPb30, 1.0736 115Mn371.0727 46 S20, 1.0728 60 S20, 1.0757 46SPb201.0402 C22, 1.1178 C30E1.0503 C45, 1.1191 C45E1.0601 C60, 1.1221 C60E1.5131 50MnSi4, 1.7003 38Cr2, 1.7030 28Cr41.5710 36NiCr6, 1.7035 41Cr4, 1.7225 42CrMo41.0301 C10, 1.1121 C10E1.7043 38Cr41.5752 14NiCr14, 1.7131 16MnCr5, 1.7264 20CrMo51.8504 34CrAl61.8519 31CrMoV9, 1.8550 34CrAlNi71.1750 C75W, 1.2067 102Cr6, 1.2307 29CrMoV91.2080 X210Cr12, 1.2083 X42Cr13, 1.2419 105WCr6, 1.2767 X45NiCrMo41.3243 S 6-5-2-5, 1.3343 S 6-5-2, 1.3344 61CrV41.5026 55Si7, 1.7176 55Cr3, 1.8159 51CrV41.4005 X12CrS13, 1.4104 X14CrMoS17, 1.4105 X6CrMoS17, 1.4305 X8CrNiS18 91.4301 X5CrNi18 10, 1.4541 X6CrNiTi18 10, 1.4571 X6CrNiMoTi 17 12 21.4057 X17CrNi16-1, 1.4122 X39CrMo17-1, 1.4521 X2CrMoTi18 2–

Nimonic, Inconel, Monel, HastelloyEN-GJL-100 ... EN-GJL-200 (previously GG10 ... GG20)EN-GJL-250 ... EN-GJL-350 (previously GG25 ... GG45)EN-GJMW-350-4, EN-GJMB-550-4, EN-GJS-500-7 (prev. GTW35, GTS55, GGG50)EN-GJMB-700-2, EN-GJS-700-2 (prev. GTW65, GTS70, GGG70)–3.7024 Ti99,5, 3.7114 TiAl5Sn2,5, 3.7124 TiCu23.7154 TiAl6Zr5, 3.7164 TiAl6V4, 3.7184 TiAl4Mo4Sn2,5, - TiAl8Mo1V13.0255 Al99,5, 3.2315 AlMgSi1, 3.3515 AlMg13.0615 AlMgSiPb, 3.1325 AlCuMg1, 3.3245 AlMg3Si, 3.4365 AlZnMgCu1,53.2131 G-AlSi5Cu1, 3.2153 G-AlSi7Cu3, 3.2573 G-AlSi93.2581 G-AlSi12, 3.2583 G-AlSi12Cu, - G-AlSi12CuNiMgMgMn2, G-MgAl8Zn1, G-MgAl6Zn32.0070 SE-Cu, 2.1020 CuSn6, 2.1096 G-CuSn5ZnPb2.0380 CuZn39Pb2, 2.0401 CuZn39Pb3, 2.0410 CuZn43Pb22.0250 CuZn20, 2.0280 CuZn33, 2.0332 CuZn37Pb0,52.1090 CuSn7ZnPb, 2.1170 CuPb5Sn5, 2.1176 CuPb10Sn2.0790 CuNi18Zn19Pb2.0916 CuAl5, 2.0960 CuAl9Mn, 2.1050 CuSn102.0980 CuAl11Ni, 2.1247 CuBe2Bakelit, Resopal, Pertinax, MoltoprenPlexiglass, Hostalen, Novodur, MakralonKevlarGFK/CFK

Common structural steels

Free-cutting steels

Unalloyed heat-treatable steels

Alloyed heat-treatable steels

Unalloyed case hardened steelsAlloyed case hardened steels

Nitriding steels

Tool steels

High speed steelsSpring steelsStainless steels, sulphured austenitic martensiticHardened steels

Special alloysCast iron

Spheroidal graphite and malleable cast ironChilled cast ironTi and Ti-alloys

Aluminium and Al-alloysAl wrought alloysAl cast iron ≤ 10 % Si > 10 % SiMagnesium alloysCopper, low-alloyedBrass, short-chipping long-chippingBronze, short-chipping

Bronze, long-chipping

DuroplasticsThermoplasticsKevlarGlass, carbon concent. plastics

Hard-ness

countersinking

soluble oilneat oilair

Coolant:

GUHRINGGUIDEcounter-sinks

145

HSS

90° 60° 90° 120°

– – – – – – A B C D A B C C C D D A B C D

90 90 91 91 92 92 82 82 83 83 84 84 85 85 85 87 87 88 88 89 89

470 471 472 473

474 475 476 1326 327 477 328

478 479

436 1318 437 1319 438 1323

480 481

2 (2…5)3 (6…19)

2 (5)3 (6…19)

3 3 3 3 5 (8/12,5)7 (16/20)

7 (16)9 (25/31,5)

11 (40)17 (100)

3 3 5 (8/12,5)7 (16/20)

7 (16/20)9 (25/31,5)

11 (40)13 (50)15 (63)

17 (80/100)

3 3 3 3 3 5 (8/12,5)7 (16/20)

7 (20)9 (25)11 (40)

17 (100)

3 3

8282828282828181818281818281818181818181818181818281818181828282838282838182828383838381828182

8282828282828181818281818281818181818181818181818281818181828282838282838182828383838381828182

8282828282828181818281818281818181818181818181818281818181828282838282838182828383838381828182

8281828181818181818281818181818181818181818181818181818181828182828282828181818282828281818181

8282828282828181818281818281818181818181818181818281818181828282838282838182828383838381828182

8382838282828282818382818281828181818281818181818282828181838283848383848282828484848482828282

8382838282828282818382818281828181818281818181818282828181838283848383848282828484848482828282

8281828181818181818281818181818181818181818181818181818181828182828282828181818282828281818181

8282828282828181818281818281818181818181818181818281818181828282838282838182828383838381828182

Reamers and Countersinks

feed column no.

countersinking

146

≤330 HB

≤40-48 HRC>48-60 HRC

≤240 HB<300 HB≤240 HB<300 HB≤350 HB

––––

≤500>500-850≤850850-1000≤ 700700-850850-1000850-10001000-1200≤750850-10001000-1200≥850-10001000-1200≤850850-1000≥650-1000

≤850≤850≤850

≤1200

≤850 850-1200≤400≤450≤600≤600≤450≤400≤600≤600≤600>600-850≤850850-100

vcm/min

323032303230201512251510151217151510161214

82516222081510907040301006080503026242030407040

vcm/min

353335333533221713281711171319171711181315

928182422

9171199774433

1106688553329262233447744

HSS

93 93 94 94 94 94 95 99 99 100

482 324 483 325 484 326

463

485 486 487

2 (2,2…4,3)3 (5,5…20)

3 3 3 3 3 3 (15…40)4 (63)

3 3 3

838283828282828281838281828182818181828181

818282828181838283848383848282828484848482828282

Reamers and Countersinks

Gu

hr.

no.

counter-bores

Tool material

Pilot

Surface finish

Std. range & tech. data p.

DIN 373

DIN 375

Guhring std.

No. of flutes (Ø-range)

bright

steam tempered

TiN

feed column no.

with fixed pilot detach. pilot with fixed pilot

Counter-sink Ømm

feed column no.81 82 83 84

f (mm/rev.)2,00 0,03 0,04 0,06 0,082,50 0,03 0,05 0,07 0,103,15 0,03 0,05 0,08 0,114,00 0,04 0,06 0,09 0,135,00 0,04 0,07 0,10 0,146,30 0,04 0,07 0,12 0,158,00 0,05 0,08 0,13 0,16

10,00 0,06 0,09 0,14 0,1712,50 0,06 0,10 0,15 0,1916,00 0,07 0,11 0,17 0,2120,00 0,08 0,13 0,18 0,2325,00 0,09 0,15 0,21 0,2631,50 0,12 0,17 0,24 0,3040,00 0,14 0,21 0,28 0,3450,00 0,17 0,24 0,31 0,3663,00 0,20 0,27 0,33 0,3880,00 0,23 0,30 0,35 0,40

100,00 0,25 0,30 0,35 0,40

Tools with bold feed column no. are preferred choice.

For exact definition of tools please refer to the“Standard range and technical data” pages.

For multi-fluted countersinking tools the Ø-range for the respective flute no. is in brackets.

Material examplesFigures in bold = material no. to DIN EN 10 027

Material group Tensile strengthN/mm2

Cool-ant

1.0035 S185, 1.0486 StE P275N, 1.0345 P235GH, 1.0425 P265GH1.0050 E295, 1.0070 E360, 1.8937 P500NH1.0718 11SMnPb30, 1.0736 115Mn371.0727 46 S20, 1.0728 60 S20, 1.0757 46SPb201.0402 C22, 1.1178 C30E1.0503 C45, 1.1191 C45E1.0601 C60, 1.1221 C60E1.5131 50MnSi4, 1.7003 38Cr2, 1.7030 28Cr41.5710 36NiCr6, 1.7035 41Cr4, 1.7225 42CrMo41.0301 C10, 1.1121 C10E1.7043 38Cr41.5752 14NiCr14, 1.7131 16MnCr5, 1.7264 20CrMo51.8504 34CrAl61.8519 31CrMoV9, 1.8550 34CrAlNi71.1750 C75W, 1.2067 102Cr6, 1.2307 29CrMoV91.2080 X210Cr12, 1.2083 X42Cr13, 1.2419 105WCr6, 1.2767 X45NiCrMo41.3243 S 6-5-2-5, 1.3343 S 6-5-2, 1.3344 61CrV41.5026 55Si7, 1.7176 55Cr3, 1.8159 51CrV41.4005 X12CrS13, 1.4104 X14CrMoS17, 1.4105 X6CrMoS17, 1.4305 X8CrNiS18 91.4301 X5CrNi18 10, 1.4541 X6CrNiTi18 10, 1.4571 X6CrNiMoTi 17 12 21.4057 X17CrNi16-1, 1.4122 X39CrMo17-1, 1.4521 X2CrMoTi18 2–

Nimonic, Inconel, Monel, HastelloyEN-GJL-100 ... EN-GJL-200 (previously GG10 ... GG20)EN-GJL-250 ... EN-GJL-350 (previously GG25 ... GG45)EN-GJMW-350-4, EN-GJMB-550-4, EN-GJS-500-7 (prev. GTW35, GTS55, GGG50)EN-GJMB-700-2, EN-GJS-700-2 (prev. GTW65, GTS70, GGG70)–3.7024 Ti99,5, 3.7114 TiAl5Sn2,5, 3.7124 TiCu23.7154 TiAl6Zr5, 3.7164 TiAl6V4, 3.7184 TiAl4Mo4Sn2,5, - TiAl8Mo1V13.0255 Al99,5, 3.2315 AlMgSi1, 3.3515 AlMg13.0615 AlMgSiPb, 3.1325 AlCuMg1, 3.3245 AlMg3Si, 3.4365 AlZnMgCu1,53.2131 G-AlSi5Cu1, 3.2153 G-AlSi7Cu3, 3.2573 G-AlSi93.2581 G-AlSi12, 3.2583 G-AlSi12Cu, - G-AlSi12CuNiMgMgMn2, G-MgAl8Zn1, G-MgAl6Zn32.0070 SE-Cu, 2.1020 CuSn6, 2.1096 G-CuSn5ZnPb2.0380 CuZn39Pb2, 2.0401 CuZn39Pb3, 2.0410 CuZn43Pb22.0250 CuZn20, 2.0280 CuZn33, 2.0332 CuZn37Pb0,52.1090 CuSn7ZnPb, 2.1170 CuPb5Sn5, 2.1176 CuPb10Sn2.0790 CuNi18Zn19Pb2.0916 CuAl5, 2.0960 CuAl9Mn, 2.1050 CuSn102.0980 CuAl11Ni, 2.1247 CuBe2Bakelit, Resopal, Pertinax, MoltoprenPlexiglass, Hostalen, Novodur, MakralonKevlarGFK/CFK

Common structural steels

Free-cutting steels

Unalloyed heat-treatable steels

Alloyed heat-treatable steels

Unalloyed case hardened steelsAlloyed case hardened steels

Nitriding steels

Tool steels

High speed steelsSpring steelsStainless steels, sulphured austenitic martensiticHardened steels

Special alloysCast iron

Spheroidal graphite and malleable cast ironChilled cast ironTi and Ti-alloys

Aluminium and Al-alloysAl wrought alloysAl cast iron ≤ 10 % Si > 10 % SiMagnesium alloysCopper, low-alloyedBrass, short-chipping long-chippingBronze, short-chipping

Bronze, long-chipping

DuroplasticsThermoplasticsKevlarGlass, carbon concent. plastics

Hard-ness

countersinking

soluble oilneat oilair

Coolant:

GUHRINGGUIDE

147

vcm/min

HSS

93 93 94 94 94 94 95 99 99 100

482 324 483 325 484 326

463

485 486 487

2 (2,2…4,3)3 (5,5…20)

3 3 3 3 3 3 (15…40)4 (63)

3 3 3

HSS-E

100 101 102 103

432 433 434 435

4 (3,5…5,5)6 (11/13)

6 (6…15)8 (16…30)

6 (10/11)8 (17…30)

8 (20…31)10 (32…48)

828282828282818181828181818181818181818181

818281818181828282838282838182828383838381828182

828282828282818181828181818181818181818181

818281818181828282838282838182828383838381828182

838283828282828281838281828182818181828181

818282828181838283848383848282828484848482828282

828282828282818181828181818181818181818181

818281818181828282838282838182828383838381828182

828182818181818181828181818181818181818181

818282828181828182828282828181818282828281818181

838283828282828281838281828182818181828181

818282828181838283848383848282828484848482828282

828282828282818181828181818181818181818181

818281818181828282838282838182828383838381828182

3027302730272420152818121815201720121268

812101085107

100808070755060454036352825326032

Reamers and Countersinks

Spot facersDin 1862

Tool material

Surface finish

Std. range & tech. data p.

Guhring no.

No. of flutes (Ø-range)

feed column no.feed column no.

with fixed pilot detach. pilot with fixed pilot

countersinking

148

vcm/min

≤330 HB

≤40-48 HRC>48-60 HRC

≤240 HB<300 HB≤240 HB<300 HB≤350 HB

––––

≤500>500-850≤850850-1000≤ 700700-850850-1000850-10001000-1200≤750850-10001000-1200≥850-10001000-1200≤850850-1000≥650-1000

≤850≤850≤850

≤1200

≤850 850-1200≤400≤450≤600≤600≤450≤400≤600≤600≤600>600-850≤850850-100

HSS

KS 125 KS 140

112 113

1601 1602

3 (10…16)4 (18…57)

3 (4,8…17,5)4 (18…79)

828282828282818181828181818181818181818181

818281818181828282838282838182828383838381828182

82828282828281818182818181818181818181818181

818281818181828282838282838182828383838381828182

30273027302724201528181218152017201212688

812101085107

100808070755060454036352825326032

Reamers and Countersinks

Tool material

Type

Surface finish

Std. range & tech. data p.

Guhring no.

No. of flutes (Ø-range)

Pilot counterbores Guhring standard

bright

TiN

feed column no.

Counter-sink Ømm

feed column no.81 82 83 84

f (mm/rev.)2,00 0,03 0,04 0,06 0,082,50 0,03 0,05 0,07 0,103,15 0,03 0,05 0,08 0,114,00 0,04 0,06 0,09 0,135,00 0,04 0,07 0,10 0,146,30 0,04 0,07 0,12 0,158,00 0,05 0,08 0,13 0,16

10,00 0,06 0,09 0,14 0,1712,50 0,06 0,10 0,15 0,1916,00 0,07 0,11 0,17 0,2120,00 0,08 0,13 0,18 0,2325,00 0,09 0,15 0,21 0,2631,50 0,12 0,17 0,24 0,3040,00 0,14 0,21 0,28 0,3450,00 0,17 0,24 0,31 0,3663,00 0,20 0,27 0,33 0,3880,00 0,23 0,30 0,35 0,40

100,00 0,25 0,30 0,35 0,40

Tools with bold feed column no. are preferred choice.

For exact definition of tools please refer to the“Standard range and technical data” pages.

For multi-fluted countersinking tools the Ø-range for the respective flute no. is in brackets.

Material examplesFigures in bold = material no. to DIN EN 10 027

Material group Tensile strengthN/mm2

Cool-ant

1.0035 S185, 1.0486 StE P275N, 1.0345 P235GH, 1.0425 P265GH1.0050 E295, 1.0070 E360, 1.8937 P500NH1.0718 11SMnPb30, 1.0736 115Mn371.0727 46 S20, 1.0728 60 S20, 1.0757 46SPb201.0402 C22, 1.1178 C30E1.0503 C45, 1.1191 C45E1.0601 C60, 1.1221 C60E1.5131 50MnSi4, 1.7003 38Cr2, 1.7030 28Cr41.5710 36NiCr6, 1.7035 41Cr4, 1.7225 42CrMo41.0301 C10, 1.1121 C10E1.7043 38Cr41.5752 14NiCr14, 1.7131 16MnCr5, 1.7264 20CrMo51.8504 34CrAl61.8519 31CrMoV9, 1.8550 34CrAlNi71.1750 C75W, 1.2067 102Cr6, 1.2307 29CrMoV91.2080 X210Cr12, 1.2083 X42Cr13, 1.2419 105WCr6, 1.2767 X45NiCrMo41.3243 S 6-5-2-5, 1.3343 S 6-5-2, 1.3344 61CrV41.5026 55Si7, 1.7176 55Cr3, 1.8159 51CrV41.4005 X12CrS13, 1.4104 X14CrMoS17, 1.4105 X6CrMoS17, 1.4305 X8CrNiS18 91.4301 X5CrNi18 10, 1.4541 X6CrNiTi18 10, 1.4571 X6CrNiMoTi 17 12 21.4057 X17CrNi16-1, 1.4122 X39CrMo17-1, 1.4521 X2CrMoTi18 2–

Nimonic, Inconel, Monel, HastelloyEN-GJL-100 ... EN-GJL-200 (previously GG10 ... GG20)EN-GJL-250 ... EN-GJL-350 (previously GG25 ... GG45)EN-GJMW-350-4, EN-GJMB-550-4, EN-GJS-500-7 (prev. GTW35, GTS55, GGG50)EN-GJMB-700-2, EN-GJS-700-2 (prev. GTW65, GTS70, GGG70)–3.7024 Ti99,5, 3.7114 TiAl5Sn2,5, 3.7124 TiCu23.7154 TiAl6Zr5, 3.7164 TiAl6V4, 3.7184 TiAl4Mo4Sn2,5, - TiAl8Mo1V13.0255 Al99,5, 3.2315 AlMgSi1, 3.3515 AlMg13.0615 AlMgSiPb, 3.1325 AlCuMg1, 3.3245 AlMg3Si, 3.4365 AlZnMgCu1,53.2131 G-AlSi5Cu1, 3.2153 G-AlSi7Cu3, 3.2573 G-AlSi93.2581 G-AlSi12, 3.2583 G-AlSi12Cu, - G-AlSi12CuNiMgMgMn2, G-MgAl8Zn1, G-MgAl6Zn32.0070 SE-Cu, 2.1020 CuSn6, 2.1096 G-CuSn5ZnPb2.0380 CuZn39Pb2, 2.0401 CuZn39Pb3, 2.0410 CuZn43Pb22.0250 CuZn20, 2.0280 CuZn33, 2.0332 CuZn37Pb0,52.1090 CuSn7ZnPb, 2.1170 CuPb5Sn5, 2.1176 CuPb10Sn2.0790 CuNi18Zn19Pb2.0916 CuAl5, 2.0960 CuAl9Mn, 2.1050 CuSn102.0980 CuAl11Ni, 2.1247 CuBe2Bakelit, Resopal, Pertinax, MoltoprenPlexiglass, Hostalen, Novodur, MakralonKevlarGFK/CFK

Common structural steels

Free-cutting steels

Unalloyed heat-treatable steels

Alloyed heat-treatable steels

Unalloyed case hardened steelsAlloyed case hardened steels

Nitriding steels

Tool steels

High speed steelsSpring steelsStainless steels, sulphured austenitic martensiticHardened steels

Special alloysCast iron

Spheroidal graphite and malleable cast ironChilled cast ironTi and Ti-alloys

Aluminium and Al-alloysAl wrought alloysAl cast iron ≤ 10 % Si > 10 % SiMagnesium alloysCopper, low-alloyedBrass, short-chipping long-chippingBronze, short-chipping

Bronze, long-chipping

DuroplasticsThermoplasticsKevlarGlass, carbon concent. plastics

Hard-ness

countersinking

soluble oilneat oilair

Coolant:

GUHRINGGUIDE

149

HSS

KS 125 KS 140

112 113

1601 1602

3 (10…16)4 (18…57)

3 (4,8…17,5)4 (18…79)

KS 115 KS 115 KS 100

118 118 118

1655 1656 1658

3 3 3

HSS-E

KS 100

118

1657

3

vcm/min

KS 108 KS 115

114 115

1603 1604

3 3

vcm/min

vcm/min

γ = 10° γ = 15°γ = 10°

84838382818382

848282828484848482828282

504545354540303022503520352040353525373335

1650405040202015

808050403530252250805050

828282828282828281828281828182818181828182

8183828282818181

848383848282828183848383

83848383848282828484848482828282

838283828282828281838281828182818181828181

818282828181838283848383848282828484848482828282

3531353135312823173220142017232023141479

914111196118

115929280865769524641403228376937

828282828282828281828281828182818181828182

818382828281818184848483848383848282828183848383

838283828282828281838281828182818181828181

818483838281838283848383848282828484848482828282

504545354540303022503520352040353525373335

165040504020201580806045808050403530252250805050

γ = 10°

Reamers and Countersinks

Pilot counterbores Guhring standard

feed column no.

Tool material

Type

Surface finish

Std. range & tech. data p.

Guhring no.

No. of flutes

Pilot counterbores Guhring no. 1654 with indexable inserts, Guhring standard

carbide/k15 carbide/P25 carbide/k15carbide/k15 carbide/M20

feed column no.feed column no.feed column no.

formachiningaluminium

countersinking

150

≤330 HB

≤40-48 HRC>48-60 HRC

≤240 HB<300 HB≤240 HB<300 HB≤350 HB

––––

≤500>500-850≤850850-1000≤ 700700-850850-1000850-10001000-1200≤750850-10001000-1200≥850-10001000-1200≤850850-1000≥650-1000

≤850≤850≤850

≤1200

≤850 850-1200≤400≤450≤600≤600≤450≤400≤600≤600≤600>600-850≤850850-100

vcm/min

HSS

KS 120

120

1605

4

828282828282818181828181818181818181818181

818281818181828282838282838182828383838381828182

3027302730272420152818121815201720121268

812101085107

100808070755060454036352825326032

Reamers and Countersinks

Tool material

Type

Surface finish

Std. range & tech. data p.

Guhring no.

mit No. of flutes(Ø-range)

feed column no.

bright Counter-sink Ømm

feed column no.81 82 83 84

f (mm/rev.)2,00 0,03 0,04 0,06 0,082,50 0,03 0,05 0,07 0,103,15 0,03 0,05 0,08 0,114,00 0,04 0,06 0,09 0,135,00 0,04 0,07 0,10 0,146,30 0,04 0,07 0,12 0,158,00 0,05 0,08 0,13 0,16

10,00 0,06 0,09 0,14 0,1712,50 0,06 0,10 0,15 0,1916,00 0,07 0,11 0,17 0,2120,00 0,08 0,13 0,18 0,2325,00 0,09 0,15 0,21 0,2631,50 0,12 0,17 0,24 0,3040,00 0,14 0,21 0,28 0,3450,00 0,17 0,24 0,31 0,3663,00 0,20 0,27 0,33 0,3880,00 0,23 0,30 0,35 0,40

100,00 0,25 0,30 0,35 0,40

Tools with bold feed column no. are preferred choice.

For exact definition of tools please refer to the“Standard range and technical data” pages.

For multi-fluted countersinking tools the Ø-range for the respective flute no. is in brackets.

Material examplesFigures in bold = material no. to DIN EN 10 027

Material group Tensile strengthN/mm2

Cool-ant

1.0035 S185, 1.0486 StE P275N, 1.0345 P235GH, 1.0425 P265GH1.0050 E295, 1.0070 E360, 1.8937 P500NH1.0718 11SMnPb30, 1.0736 115Mn371.0727 46 S20, 1.0728 60 S20, 1.0757 46SPb201.0402 C22, 1.1178 C30E1.0503 C45, 1.1191 C45E1.0601 C60, 1.1221 C60E1.5131 50MnSi4, 1.7003 38Cr2, 1.7030 28Cr41.5710 36NiCr6, 1.7035 41Cr4, 1.7225 42CrMo41.0301 C10, 1.1121 C10E1.7043 38Cr41.5752 14NiCr14, 1.7131 16MnCr5, 1.7264 20CrMo51.8504 34CrAl61.8519 31CrMoV9, 1.8550 34CrAlNi71.1750 C75W, 1.2067 102Cr6, 1.2307 29CrMoV91.2080 X210Cr12, 1.2083 X42Cr13, 1.2419 105WCr6, 1.2767 X45NiCrMo41.3243 S 6-5-2-5, 1.3343 S 6-5-2, 1.3344 61CrV41.5026 55Si7, 1.7176 55Cr3, 1.8159 51CrV41.4005 X12CrS13, 1.4104 X14CrMoS17, 1.4105 X6CrMoS17, 1.4305 X8CrNiS18 91.4301 X5CrNi18 10, 1.4541 X6CrNiTi18 10, 1.4571 X6CrNiMoTi 17 12 21.4057 X17CrNi16-1, 1.4122 X39CrMo17-1, 1.4521 X2CrMoTi18 2–

Nimonic, Inconel, Monel, HastelloyEN-GJL-100 ... EN-GJL-200 (previously GG10 ... GG20)EN-GJL-250 ... EN-GJL-350 (previously GG25 ... GG45)EN-GJMW-350-4, EN-GJMB-550-4, EN-GJS-500-7 (prev. GTW35, GTS55, GGG50)EN-GJMB-700-2, EN-GJS-700-2 (prev. GTW65, GTS70, GGG70)–3.7024 Ti99,5, 3.7114 TiAl5Sn2,5, 3.7124 TiCu23.7154 TiAl6Zr5, 3.7164 TiAl6V4, 3.7184 TiAl4Mo4Sn2,5, - TiAl8Mo1V13.0255 Al99,5, 3.2315 AlMgSi1, 3.3515 AlMg13.0615 AlMgSiPb, 3.1325 AlCuMg1, 3.3245 AlMg3Si, 3.4365 AlZnMgCu1,53.2131 G-AlSi5Cu1, 3.2153 G-AlSi7Cu3, 3.2573 G-AlSi93.2581 G-AlSi12, 3.2583 G-AlSi12Cu, - G-AlSi12CuNiMgMgMn2, G-MgAl8Zn1, G-MgAl6Zn32.0070 SE-Cu, 2.1020 CuSn6, 2.1096 G-CuSn5ZnPb2.0380 CuZn39Pb2, 2.0401 CuZn39Pb3, 2.0410 CuZn43Pb22.0250 CuZn20, 2.0280 CuZn33, 2.0332 CuZn37Pb0,52.1090 CuSn7ZnPb, 2.1170 CuPb5Sn5, 2.1176 CuPb10Sn2.0790 CuNi18Zn19Pb2.0916 CuAl5, 2.0960 CuAl9Mn, 2.1050 CuSn102.0980 CuAl11Ni, 2.1247 CuBe2Bakelit, Resopal, Pertinax, MoltoprenPlexiglass, Hostalen, Novodur, MakralonKevlarGFK/CFK

Common structural steels

Free-cutting steels

Unalloyed heat-treatable steels

Alloyed heat-treatable steels

Unalloyed case hardened steelsAlloyed case hardened steels

Nitriding steels

Tool steels

High speed steelsSpring steelsStainless steels, sulphured austenitic martensiticHardened steels

Special alloysCast iron

Spheroidal graphite and malleable cast ironChilled cast ironTi and Ti-alloys

Aluminium and Al-alloysAl wrought alloysAl cast iron ≤ 10 % Si > 10 % SiMagnesium alloysCopper, low-alloyedBrass, short-chipping long-chippingBronze, short-chipping

Bronze, long-chipping

DuroplasticsThermoplasticsKevlarGlass, carbon concent. plastics

Hard-ness

countersinking

soluble oilneat oilair

Coolant:

GUHRINGGUIDESpotfacersGuhring std.

151

vcm/min

KS 100

121

1606

3 (10…12)4 (15…67)

vcm/min

HSS

KS 100

116

1622

3

vcm/min

HSS

RS 115

132

1638

4

vcm/min

RS 115

133

1640

4

838283828282828281838281828182818181828181

818483838281838283848383848282828484848482828282

534848374842323223533721372142373727393537

175342534221211684846348848453423732272353845353

828282828282818181828181818181818181818181

818281818181828282838282838182828383838381828182

3027302730272420152818121815201720121268

812101085107

100808070755060454036352825326032

838283828382838281828281828182818181828282

818483838281818184848484848484848382828284848484

454141324136272720453218321836323223333032

144536453618181472725463727245363227232045724545

828282828282818181828181818181818181818181

818281818181828282838282838182828383838381828182

3027302730272420152818121815201720121268

812101085107

100808070755060454036352825326032

Reamers and Countersinks

carbide/k15 carbide/M20

feed column no.feed column no.feed column no.feed column no.

countersinkingtaper countersinksGuhring std.

Back spotfacersGuhring std.

152 Reamers and Countersinks

Hole too large

• Tool diameter too large• Cutting speed/feed rate too high• Concentricity error of machine spindle• Bevel lead of tool too short/uneven• Cutting edge build up due to excessive

cutting speeds• Lubricating agent unsuitable, holes too

large due to lubrication• Axis shifting between tool and pre-drilled

hole. Application of floating holders

Low cutting speed, high feed rates as well as the use of good cooling and lubricating agents provide the basis for good reaming practice. A further point to be considered is that a reamer – an exception is the machine bottoming reamer – always follows the direction of the pre-drilled hole. Subsequently, reamers do not correct alignment errors of pre-drilled holes. Errors between the spindle axis and the axis of the pre-drilled hole can be adjusted with the aid of floating holders. The following fault finding chart will be found useful in tracing the cause of some common reaming problems.

typical reaming errors

Hole too small

• Reamer blunt. Does not cut, only scrapes• Cutting speed/feed rate too low• Component is thin-walled, springs back• Insufficient stock removal allowance, tool

seizes in hole

conical hole malformation

• Tool knocks in spindle• Bevel lead incorrect• Axis shifting between tool and pre-drilled

hole. Application of floating holders• Pre-machining inaccurate

Unsatisfactory surface finish

• No/insufficient lubrication. Cutting edge build-up.

• Tool damaged, i. e. broken cutting edge • Material has a tendancy to cause build up

on cutting edges.• Surface finish of pre-drilled hole

unsatisfactory • Concentricity bevel lead incorrect • Chip evacuation restricted

Misalignment of hole

• Pre-drilled hole misaligned• Concentricity bevel lead incorrect

Hole crowned or oval

• Workpiece clamped incorrectly

Hole has chatter marks

• Cutting edge build-up• Grease content in coolant too low • Circular lands too wide • Stock removal allowance insufficient • Tool incorrectly clamped in tool holder • Machine spindle not concentric• Feed rate too low

tool seizes and breaks

• Back taper incorrect • Circular lands too wide• Pre-drilled hole is too small• Bevel lead blunt/ground unevenly • Feed rate too high• Chip congestion

troubleshooting

nom. size

technical sectiontechnical sectiont

Tech

nic

al s

ecti

on

• Reaming and countersinking page 154

• Reamers from page 155

• Short counterbores: Assembly from page 165

• PCD special reamers from page 167

• Questionnaire special reamers from page 170

154

Hauptschneide

Pf

Schneidenecke

Nebenschneide

F

E

γ p

b α

γo

αo

C

D

Führungszapfen

χ r

γf

Pr

E-F (Pp)

C-D (Po)

Ps

αo

γ fbα

G

H

G-H

A

B

C

D

A-B

Hauptschneide

Nebenschneide

Schneidecke

γ f

γp

α p

Po

Pr

γo

αo

C-D (Pp)

Anschnittlänge

Pf

Ps

C r

Senkwinkel

A

γp

γo

αoχ r

BA-B

Reamers and Countersinks

Reaming and countersinking

αo = clearance angleαp = clearance angle of minor cutting edgeba = circular land widthγoγoγ = orthogonal rake angleγfγfγ = helix angleγpγpγ = back rake angle of minor cutting edge

χr = face setting anglePo = tool orthogonal planePr = assumed operating planePp = tool back planePr = tool reference planePs = tool cutting edge plane

countersinks

counterboresReamers

Definitions, dimensions and anglesDefinitions, dimensions and angles

Nebenschneideminor cutting edgeNebenschneideminor cutting edgeNebenschneide

Hauptschneidemajor cutting edgeHauptschneidemajor cutting edgeHauptschneide

Anschnittlängebevel leadAnschnittlängebevel leadAnschnittlänge

Schneideckeedgehneidecedgehneidec

Nebenschneideminor cutting edgeNebenschneideminor cutting edgeNebenschneideHauptschneidemajor cutting edgeHauptschneidemajor cutting edgeHauptschneide

FührungszapfenFührungszapfenpilotFührungszapfen

HauptschneideHauptschneidemajor cutting edgeHauptschneidemajor cutting edgeHauptschneide

Hauptschneidemajor cutting edgeHauptschneidemajor cutting edgeHauptschneide Nebenschneideminor cutting edgeNebenschneideminor cutting edgeNebenschneide

FührungszapfenpilotFührungszapfenpilotFührungszapfen

Schneideneckeedgehneidenecedgehneideneckeedgeke

Senkwinkelcountersinking angleSecountersinking angleSenkwinkelcountersinking anglenkwinkel

155Reamers and Countersinks

Reamers

The reamer is the most commonly used tool for the production of holes true to form and tolerance with high surface quality. The latter meets the requirement of ‘finishing’ or ‘fine finishing’ i.e. from approximately Ra 0.2 to 6.5 µm according to the scales laid down in DIN 4766. However, finishes to Ra = 0.5 µm can be regarded as satisfactory. Generally, the achievable tolerance ranks at IT 7. In special cases IT 6 or even IT 5 are possible, provided that the reamer is appropriately ground and all other operating conditions meet the high specifications.

In preparation for the reaming process, holes have to be pre-drilled and normally core drilled (fig. 1). Pre-drilled holes produced with gun drills, are due to their highly compressed surface, not particularly suitable for reaming. Moreover, holes produced with gun drills show generally excellent tolerances on fit and surface qualities, so that additional fine finishing is usually not required. Should any further information on our gun drills be needed, please do not hesitate to contact us.

Which reamer for which purpose?

With regard to their application we differentiate between:• hand reamers• machine reamers

Hand reamers are turned in the hole by means of a tap wrench which is mounted on the square. The feeding action is produced manually. Because of the low cutting rates these tools are made of HSS. To ensure aproper guidance in the hole the taper lead length of hand reamers is made considerably longer than that of machine reamers. Hand reamers are available for both cylindrical and tapered holes.

Hand reamers to DIN 859 may be adjusted within the elasticity tolerance range of hardened HSS. This corresponds in practice to 1% of the diameter, i.e. for example 0.1 mm on a reamer with 10 mm diameter. In the fully expanded condition these tools are not very resistant to breakage and must therefore be protected against impact. They should be stored with the tension released.

Expanding reamers can be adjusted over a much larger range, even up to a few millimeters! For accuracy reasons setting must be carried out with a ring gauge.

A basic rule for reaming by hand: turn the tool only in the cutting direction, i.e. never reverse the tool contrary to standard practice in thread cutting. Cutting edges will become immediately blunt if the reamer is turned back.

Machine reamers are - as the name implies - exclusively designed for use on machines and differ with regard to the type of tool material. Due to the possibility of higher cutting values, these tools are available in HSS-E, solid carbide or carbide-tipped (fig. 5). The tool material should be selected in accordance with the material to be machined.

Carbide reamers offer the following advantages:

• Higher cutting speeds and feed rates.• Most economic machining of materials of over 1200 mm2 tensile strength.• The tool life is much higher than that of HSS-E reamers.

Reamers with special form and to special tolerances (fig. 6) have recently become more and more common place. Their manufacture requires a great deal of know-how as well as the most modern and sophisticated tooling. We have all the machines and the knowledge to produce even the most complicated tools very economically. Leave the machining problems to us. To meet and overcome them is the daily task of our engineers. They are ready to assist you at all times, to find the best possible solution and, if necessary, to arrange for an obligation-free demonstration of our tools on your own machines.

Fig. 1

Fig. 2: taper hand reamer

Fig. 4: expanding hand reamer with blades

Fig. 3: adjustable hand reamer

core drilling reamingdrilling

Fig. 5: carbide-tipped machine reamer

Fig. 6

Selection and application

156 Reamers and Countersinks

Reamers

Selection and application, manufacturing tolerances and designation to Din 1420A further distinctive feature of hand and machine reamers is the geometry of the cutting section, standardised under the following headings:

• straight-fluted reamers• LH spiral reamers• reamers with quick spiral (45°) left-hand flutes

Tools with right-hand spiral flutes are only applied in spe-cial cases. They produce, as do twist drills, a chip flow up the flutes, which often results in an unsatisfactory surface finish quality.

Reamers with straight flutes are suirable for the machining of blind holes. Here again the absence of chip space at the bottom of the hole means that swarf must be evacuated up the reamer flutes. For all other machining tasks, and particularly for interrupted holes (e.g. holes with keyways, intersecting holes and the like), reamers with left-hand spiral flutes are much more suitable. Chip removal is always in the direction of the feed and for this reason this flute geometry is used almost exclusively for through holes. Their application in blind holes is limited to tasks where reaming to the full depth is not required, so that sufficient space for the chip volume created is available.

The 45° LH quick spiral reamer (fig. 7) has been well tried and tested in long-chipping materials. For absolutely straight and precisely located deep holes we recommend our machine bottoming reamers (fig. 8). Their bevel lead is face-cutting, i.e., they do not cut in conformity with the pre-drilled hole, but correct it truly to size. Machine bottoming reamers should always be applied with bushings.

Accuracy in surface quality and form is tremendously improved by dividing the machining process into rough and finishing reaming. For this and other reasons we supply taper pin reamers as rough and finishing reamers for both manual and machine operations. Stepped machine reamers (fig. 9) perform these two operations in one pass.

Badly worn taper pin reamers can be salvaged by resharpe-ning of taper and reduction of circular land width.

Storage of reamers

Reamers are finishing tools and therefore very vulnerable. To avoid damage, individual storage and transport in our plastic sleeves is recommended. Tools reward careful treatment by producing excellent results and giving much higher operational life.

1. Manufacturing tolerances

1.1. General remarks for the determination of manufacturing tolerances for reamers

The manufacturing tolerances to DIN 1420 are allocated to certain tolerance zones of the holes to be reamed. Generally, they ensure the positioning of reamed holes within the relevant tolerance zone as well as the most eco-nomical use of the reamer.

It must, however, be taken into account that the size of the reamed hole depends, in addition to the manufacturing tolerance of the reamer, on various other factors, such as angles of cutting edges; bevel lead of reamer; clamping of the workpiece; tool holder; condition of machine; the coo-lant and on the material of the workpiece. Therefore, from time to time other manufacturing tolerances might prove more advantageous.

However, in the interest of economic production and storage as well as for the sake of uniformity when using reamers obtained from different manufacturers, it is recommended that non-standard manufacturing tolerances be specified only in exceptional cases.

The following well-proven basic rules should be taken into account when determining manufacturing tolerances:

Fig. 8: machine bottoming reamer

Fig. 7: machine roughing reamer

Fig. 9: stepped carbide-tipped machine reamer

Stock allowance (recommended values in mm)

When using expanding machine reamers or reamers with inserted blades the metal removal allowance should be reduced by approximately 30%. Due to the efficient action of the spiral, the values for quick spiral reamers may be increased by 50 to 100%.

MaterialØup to 6 mm

Øup to 10 mm

Øup to 16 mm

Øup to 25 mm

Øover 25 mm

Steels up to 700 N/mm2

Steel 700 -1000 N/mm2

Cast steelGrey cast ironMalleable cast iron

CopperBrass, bronzeLight alloys

Plastics, hardPlastics, soft

0.1 - 0.2 0.2 0.2 - 0.3 0.3 - 0.4 0.40.1 - 0.2 0.2 0.2 0.3 0.3 - 0.4

0.1 - 0.2 0.2 0.2 0.2 - 0.3 0.3 - 0.40.1 - 0.2 0.2 0.2 - 0.3 0.3 - 0.4 0.3 - 0.40.1 - 0.2 0.2 0.3 0.3 - 0.4 0.40.1 - 0.2 0.2 - 0.3 0.3 - 0.4 0.4 0.4 - 0.50.1 - 0.2 0.2 0.2 - 0.3 0.3 0.3 - 0.40.1 - 0.2 0.2 - 0.3 0.3 - 0.4 0.4 0.4 - 0.5

0.1 - 0.2 0.2 0.4 0.4 - 0.5 0.50.1 - 0.2 0.2 0.2 0.3 0.3 - 0.4

157Reamers and Countersinks

Selection and application, manufacturing tolerances and designation to Din 14201.2. Determination of permissible max. and min. sizes of reamers

The permissible largest reamer diameter d1max ranges at about 15% of the approximate hole tolerance (0.15 IT) below the permissible maximum diameter of the hole (fig. 9), whereby the value 0.15 IT will be rounded to the next higher integer or half µm-value, so that even µm values are derived for d1max.

The permissible smallest reamer diameter d1 min ranges at about 35% of the appropriate hole tolerance (0.35 IT) below the permissible maximum diameter d1max*.

Example 1: for reamer 20 H 7 Nominal diameter d1 = 20.000 mm Maximum diameter of hole = 20.021 mm Hole tolerance (IT 7) = 0.021 mm 15% of hole tolerance (0.15 IT 7) = 0.0031 mm ≈ 0.004 mm Maximum reamer diameter: d1 max = 20.021 – 0.004 = 20.017 mm Manufacturing tolerance of reamer: 35% of hole tolerance (0.35 IT 7) = 0.0073 mm ≈ 0.008 mm Minimum reamer diameter: d1 min = d1 max – 0.35 IT 7 = 20.017 – 0.008 = 20.009 mm

1.3. Simplified determination of permissible max. and min. reamer dimensions

To facilitate calculations, the tables on the following pages indicate the upper and lower tolerance limits on the nominal diameter d1 for the most common tolerance zones.

With the aid of these tolerance limits permissible maximum and minimum reamer dimensions can be calculated as follows:

Example 2: for reamer 20 H 7 Nominal diameter d1 = 20.000 mm upper tolerance limit to table + 17 µm = 0.017 mm lower tolerance limit to table + 9 µm = 0.009 mm i.e. d1 max = 20.000 + 0.017 = 20.017 mm d1 min = 20.000 + 0.009 = 20.009 mm

2. Designation

For the designation of reamers the ISO abbreviation for the tolerance zone of the hole is indicated after the nominal diameter. Designation of a reamer with nominal diameter d1 = 20 mm, for hole tolerance H 7:

reamer 20 H 7 DIN ...

(„...“: for DIN no. indication of appropriate reamer)

In special cases, reamers are ordered with maximum and minimum dimensions deviating from this standard, the ISO abbreviation for the hole tolerance zone must be replaced by the upper and lower tolerance limit of the reamer in µm, e.g. for a reamer with a nominal diameter d1 = 20 mm, upper tolerance limit = + (p) 25 µm and lower tolerance limit = + (p) 15 µm:

reamer 20 p 25 p 15 DIN ...

The designation shows a ‘p’ instead of the plus and an ‘m’ instead of the minus sign, because »+« and » – « cannot be written on all machines, particularly not on data processing machines.

*) with reference to the nominal diameter d1. As to the upper and lower tolerances please refer to the following pages.

max. dia. of hole

tolerance zone ofhole

tolerance zone of REAMER

max. dia. of hole

min. dia of hole min. dia of hole

tolerance zonetolerance zone(e. g. 20 H7)

0.021 (basic tolerance IT7)

d1 max

d1 min

Ø20.000

Ø20.021

zero line

Ø20.009

Ø20.017

+0.009 (lower tolerance limit)

+0.017 (upper tolerance limit)

Manufacturing tolerancesof reamers

Fig. 9:Simplified determination of permissible max. and min. reamer dimensionsExample: Hole tolerance zone Ø 20 H7/nominal diameter d1 for 20 mm reamer

158

A9 A11 B8 B9 B10 B11 C8 C9 C10 C11

1 3

3 6

6 10

10 18

18 30

30 40

40 50

50 65

65 80

80 100

100 120

120 140

140 160

160 180

+ 291 + 321 + 151 + 161 + 174 + 191 + 71 + 81 + 94 + 111 + 282 + 300 + 146 + 152 + 160 + 170 + 66 + 72 + 80 + 90

+ 295 + 333 + 155 + 165 + 180 + 203 + 85 + 95 + 110 + 133 + 284 + 306 + 148 + 154 + 163 + 176 + 78 + 84 + 93 + 106

+ 310 + 356 + 168 + 180 + 199 + 226 + 98 + 110 + 129 + 156 + 297 + 324 + 160 + 167 + 178 + 194 + 90 + 97 + 108 + 124

+ 326 + 383 + 172 + 186 + 209 + 243 + 117 + 131 + 154 + 188 + 310 + 344 + 162 + 170 + 184 + 204 + 107 + 115 + 129 + 149

+ 344 + 410 + 188 + 204 + 231 + 270 + 138 + 154 + 181 + 220 + 325 + 364 + 176 + 185 + 201 + 224 + 126 + 135 + 151 + 174

+ 362 + 446 + 203 + 222 + 255 + 306 + 153 + 172 + 205 + 256 + 340 + 390 + 189 + 200 + 220 + 250 + 139 + 150 + 170 + 200

+ 372 + 456 + 213 + 232 + 265 + 316 + 163 + 182 + 215 + 266 + 350 + 400 + 199 + 210 + 230 + 260 + 149 + 160 + 180 + 210

+ 402 + 501 + 229 + 252 + 292 + 351 + 179 + 202 + 242 + 301 + 376 + 434 + 212 + 226 + 250 + 284 + 162 + 176 + 200 + 234

+ 422 + 521 + 239 + 262 + 302 + 361 + 189 + 212 + 252 + 311 + 396 + 454 + 222 + 236 + 260 + 294 + 172 + 186 + 210 + 244

+ 453 + 567 + 265 + 293 + 339 + 407 + 215 + 243 + 289 + 357 + 422 + 490 + 246 + 262 + 290 + 330 + 196 + 212 + 240 + 280

+ 483 + 597 + 285 + 313 + 359 + 427 + 225 + 253 + 299 + 367 + 452 + 520 + 266 + 282 + 310 + 350 + 206 + 222 + 250 + 290

+ 545 + 672 + 313 + 345 + 396 + 472 + 253 + 285 + 336 + 412 + 510 + 584 + 290 + 310 + 340 + 384 + 230 + 250 + 280 + 324

+ 605 + 732 + 333 + 365 + 416 + 492 + 263 + 295 + 346 + 422 + 570 + 644 + 310 + 330 + 360 + 404 + 240 + 260 + 290 + 334

+ 665 + 792 + 363 + 395 + 446 + 522 + 283 + 315 + 366 + 442 + 630 + 704 + 340 + 360 + 390 + 434 + 260 + 280 + 310 + 354

1 3

3 6

6 10

10 18

18 30

30 50

50 80

80 120

120 180

D8 D9 D10 D11 E7 E8 E9 F6 F7 F8 F9 G6 G7

+ 31 + 41 + 54 + 71 + 22 + 25 + 35 + 11 + 14 + 17 + 27 + 7 + 10 + 26 + 32 + 40 + 50 + 18 + 20 + 26 + 8 + 10 + 12 + 18 + 4 + 6

+ 45 + 55 + 70 + 93 + 30 + 35 + 45 + 16 + 20 + 25 + 35 + 10 + 14 + 38 + 44 + 53 + 66 + 25 + 28 + 34 + 13 + 15 + 18 + 24 + 7 + 9

+ 58 + 70 + 89 + 116 + 37 + 43 + 55 + 20 + 25 + 31 + 43 + 12 + 17 + 50 + 57 + 68 + 84 + 31 + 35 + 42 + 16 + 19 + 23 + 30 + 8 + 11

+ 72 + 86 + 109 + 143 + 47 + 54 + 68 + 25 + 31 + 38 + 52 + 15 + 21 + 62 + 70 + 84 + 104 + 40 + 44 + 52 + 21 + 24 + 28 + 36 + 11 + 14

+ 93 + 109 + 136 + 175 + 57 + 68 + 84 + 31 + 37 + 48 + 64 + 18 + 24 + 81 + 90 + 106 + 129 + 49 + 56 + 65 + 26 + 29 + 36 + 45 + 13 + 16

+ 113 + 132 + 165 + 216 + 71 + 83 + 102 + 38 + 46 + 58 + 77 + 22 + 30 + 99 + 110 + 130 + 160 + 62 + 69 + 80 + 32 + 37 + 44 + 55 + 16 + 21

+ 139 + 162 + 202 + 261 + 85 + 99 + 122 + 46 + 55 + 69 + 92 + 26 + 35 + 122 + 136 + 160 + 194 + 74 + 82 + 96 + 39 + 44 + 52 + 66 + 19 + 24

+ 165 + 193 + 239 + 307 + 101 + 117 + 145 + 54 + 65 + 81 + 109 + 30 + 41 + 146 + 162 + 190 + 230 + 88 + 98 + 114 + 46 + 52 + 62 + 78 + 22 + 28

+ 198 + 230 + 281 + 357 + 119 + 138 + 170 + 64 + 77 + 96 + 128 + 35 + 48 + 175 + 195 + 225 + 269 + 105 + 115 + 135 + 55 + 63 + 73 + 93 + 26 + 34

Reamers and Countersinks

Reamers

Permissible upper and lower tolerances on nominal reamer diameter d1 in µmfor hole tolerance zone

Permissible upper and lower tolerances on nominal reamer diameter d1 in µmfor hole tolerance zone

Nominal diameterin mm

over to

Nominal diameterin mm

over to

Manufacturing tolerances (tolerance zones A … P) Din 1420

159

1 3

3 6

6 10

10 18

18 30

30 50

50 80

80 120

120 180

1 3

3 6

6 10

10 18

18 30

30 50

50 80

80 120

120 180

K6 K7 K8 M6 M7 M8 N6 N7 N8 N9 N10 N11 P6 P7

– 1 – 2 – 3 – 3 – 4 – 5 – 6 – 7 – 8 –10 – 13 – 7 – 8 – 4 – 6 – 8 – 6 – 8 – 8 –10 –12 –17 –24 – 34 –10 –12

0 + 1 + 2 – 3 – 2 – 1 – 7 – 6 – 5 – 5 – 8 – 12 –11 –10 – 3 – 4 – 5 – 6 – 7 – 8 –10 –11 –12 –16 –25 – 39 –14 –15

0 + 2 + 2 – 5 – 3 – 3 – 9 – 7 – 7 – 6 – 9 – 14 –14 –12 – 4 – 4 – 6 – 9 – 9 –11 –13 –13 –15 –19 –30 – 46 –18 –18

0 + 3 + 3 – 6 – 3 – 3 –11 – 8 – 8 – 7 –11 – 17 –17 –14 – 4 – 4 – 7 –10 –10 –13 –15 –15 –18 –23 –36 – 56 –21 –21

0 + 2 + 5 – 6 – 4 – 1 –13 –11 – 8 – 8 –13 – 20 –20 –1 – 5 – 6 – 7 –11 –12 –13 –18 –19 –20 –27 –43 – 66 –25 –26

0 + 3 + 6 – 7 – 4 – 1 –15 –12 – 9 –10 –15 – 24 –24 –21 – 6 – 6 – 8 –13 –13 –15 –21 –21 –23 –32 –50 – 80 –30 –30

+ 1 + 4 + 7 – 8 – 5 – 2 –17 –14 –11 –12 –18 – 29 –29 –26 – 6 – 7 –10 –15 –16 –19 –24 –25 –28 –38 –60 – 96 –36 –37

0 + 4 + 7 –10 – 6 – 3 –20 –16 –13 –14 –21 – 33 –34 –30 – 8 – 9 –12 –18 –19 –22 –28 –29 –32 –45 –70 –110 –42 –43

0 + 6 +10 –12 – 6 – 2 –24 –18 –14 –15 –24 – 38 –40 –43 – 9 – 8 –13 –21 –20 –25 –33 –32 –37 –50 –80 –126 –49 –48

H6 H7 H8 H9 H10 H11 H12 J6 J7 J8 JS6 JS7 JS8 JS9

+ 5 + 8 +11 +21 + 34 + 51 + 85 + 1 + 2 + 3 + 2 + 3 + 4 + 8 + 2 + 4 + 6 +12 + 20 + 30 + 50 – 2 – 2 – 2 – 1 – 1 – 1 – 1

+ 6 +10 +15 +25 + 40 + 63 +102 + 3 + 4 + 7 + 2 + 4 + 6 +10 + 3 + 5 + 8 +14 + 23 + 36 + 60 0 – 1 0 – 1 – 1 – 1 – 1

+ 7 +12 +18 +30 + 49 + 76 +127 + 3 + 5 + 8 + 3 + 5 + 7 +12 + 3 + 6 +10 +17 + 28 + 44 + 74 – 1 – 1 0 – 1 – 1 – 1 – 1

+ 9 +15 +22 +36 + 59 + 93 +153 + 4 + 7 +10 + 3 + 6 + 8 +15 + 5 + 8 +12 +20 + 34 + 54 + 90 0 0 0 – 1 – 1 – 1 – 1

+11 +17 +28 +44 + 71 +110 +178 + 6 + 8 +15 + 4 + 7 +11 +18 + 6 + 9 +16 +25 + 41 + 64 +104 + 1 0 + 3 – 1 – 1 – 1 – 1

+13 +21 +33 +52 + 85 +136 +212 + 7 +10 +18 + 5 + 8 +13 +21 + 7 +12 +19 +30 + 50 + 80 +124 + 1 + 1 + 4 – 1 – 1 – 1 – 1

+16 +25 +39 +62 +102 +161 +255 +10 +13 +21 + 6 +10 +16 +25 + 9 +14 +22 +36 + 60 + 94 +150 + 3 + 2 + 4 – 1 – 1 – 1 – 1

+18 +29 +45 +73 +119 +187 +297 +12 +16 +25 + 7 +12 +18 +30 +10 +16 +26 +42 + 70 +110 +174 + 4 + 3 + 6 – 1 – 1 – 1 – 1

+21 +34 +53 +85 +136 +212 +340 +14 +20 +31 + 8 +14 +22 +35 +12 +20 +30 +50 + 80 +124 +200 + 5 + 6 + 8 – 1 0 – 1 0

Reamers and Countersinks

Ourstandard

manufacturing accuracy

Permissible upper and lower tolerances on nominal reamer diameter d1 in µmfor hole tolerance zone

Permissible upper and lower tolerances on nominal reamer diameter d1 in µmfor hole tolerance zone

Nominal diameterin mm

over to

Nominal diameterin mm

over to

Manufacturing tolerances (tolerance zones A … P) Din 1420

160

1 3

3 6

6 10

10 14

14 18

18 24

24 30

30 40

40 50

50 65

65 80

80 100

100 120

120 140

140 160

160 180

–11 –12 – 15 – 16 – 19 – 20 – 32 –14 –16 – 18 – 20 – 22 – 24 – 46

–14 –13 – 18 – 17 – 22 – 21 – 31 – 43 –17 –18 – 21 – 22 – 25 – 26 – 48 – 60

–18 –16 – 22 – 20 – 27 – 25 – 37 – 51 –22 –22 – 26 – 26 – 31 – 31 – 58 – 72

–22 –19 – 27 – 24 – 32 – 29 – 44 – 61 –26 –26 – 31 – 31 – 36 – 36 – 69 – 86

–22 –19 – 27 – 24 – 32 – 29 – 44 – 56 – 71 –26 –26 – 31 – 31 – 36 – 36 – 69 – 81 – 96

–26 –24 – 33 – 31 – 39 – 37 – 67 – 86 –31 –32 – 38 – 39 – 44 – 45 – 97 –116

–26 –24 – 33 – 31 – 39 – 46 – 44 – 77 –101 –108 –31 –32 – 38 – 39 – 44 – 51 – 52 –107 –131 –154

–32 –29 – 41 – 38 – 46 – 58 – 55 – 95 –127 –136 –38 –38 – 47 – 47 – 52 – 64 – 64 –130 –162 –192

–32 –29 – 41 – 38 – 52 – 68 – 65 – 85 –112 –151 –160 –38 –38 – 47 – 47 – 58 – 74 – 74 –120 –147 –186 –216

–38 –35 – 50 – 47 – 63 – 84 – 81 –105 –140 –151 –190 –201 –45 –46 – 57 – 58 – 70 – 91 – 92 –147 –182 –218 –232 –268

–40 –37 – 56 – 53 – 72 – 99 – 96 –120 –164 –175 –228 –239 –47 –48 – 63 – 64 – 79 –106 –107 –162 –206 –242 –270 –306

–48 –44 – 68 – 64 – 88 –121 –117 –145 –199 –211 –279 –291 –56 –57 – 76 – 77 – 96 –129 –130 –194 –248 –288 –328 –368

–51 –47 – 76 – 72 –101 –141 –137 –165 –231 –243 –331 –343 –59 –60 – 84 – 85 –109 –149 –150 –214 –280 –320 –380 –420

–60 –54 – 89 – 83 –119 –167 –161 –194 –272 –286 –389 –403 –69 –68 – 98 – 97 –128 –176 –175 –250 –328 –374 –445 –491

–62 –56 – 97 – 91 –131 –187 –181 –214 –304 –318 –439 –453 –71 –70 –106 –105 –140 –196 –195 –270 –360 –406 –495 –541

–65 –59 –105 – 99 –143 –207 –201 –234 –334 –348 –489 –503 –74 –73 –114 –113 –152 –216 –215 –290 –390 –436 –545 –591

R6 R7 S6 S7 T6 U6 U7 U10 X10 X11 Z10 Z11

Reamers and Countersinks

Reamers

Nominal diameterin mm

over to

Permissible upper and lower tolerances on nominal reamer diameter d1 in µmfor hole tolerance zone

Manufacturing tolerances (tolerance zones R ... Z) Din 1420

161

1 4 6 9 1321

3 4 5 6 7 8 9 10 11 12 13 14

2 3 4 6 10 14 25 40 60 100 140 250

2.5 4 5 8 12 18 30 48 75 120 180 300

2.5 4 6 9 15 22 36 58 90 150 220 360

3 5 8 11 18 27 43 70 110 180 270 430

4 6 9 13 21 33 52 84 130 210 330 520

4 7 11 16 25 39 62 100 160 250 390 620

5 8 13 19 30 46 74 120 190 300 460 740

6 10 15 22 35 54 87 140 220 350 540 870

33

52

84

130

210330

520

840

1300

2100

33003300

µm

2100

1300

1100

900

700

500

300

150

100

50

0 01 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18IT

Reamers and Countersinks

0.6 1.5 2.5

Range of nominal size

mm

IT in µm

Example: Basic ISO tolerances for a range of nominal sizes over 18 to 30 mm

small valuesfor gauges

medium valuesfor common fits

high valuesfor coarse tolerances

(products of rolling mills)

Basic iSO tolerances for length dimensions: 1 - 120 mm DIN ISO 286-1

from 1to 3

over 3to 6

over 6to 10

over 10to 18

over 18to 30

over 30to 50

over 50to 80

over 80to 120

162

A B c

9 11 8 9 10 11 8 9 10 11

0 3+295 +330 +154 +165 +180 +200 +74 +85 +100 +120+270 +270 +140 +140 +140 +140 +60 +60 +60 +60

3 6+300 +345 +158 +170 +188 +215 +88 +100 +118 +145+270 +270 +140 +140 +140 +140 +70 +70 +70 +70

6 10+316 +370 +172 +186 +208 +240 +102 +116 +138 +170+280 +280 +150 +150 +150 +150 +80 +80 +80 +80

10 18+333 +400 +177 +193 +220 +260 +122 +138 +165 +205+290 +290 +150 +150 +150 +150 +95 +95 +95 +95

18 30+352 +430 +193 +212 +244 +290 +143 +162 +194 +240+300 +300 +160 +160 +160 +160 +110 +110 +110 +110

30 40+372 +470 +209 +232 +270 +330 +159 +182 +220 +280+310 +310 +170 +170 +170 +170 +120 +120 +120 +120

40 50+382 +480 +219 +242 +280 +340 +169 +192 +230 +290+320 +320 +180 +180 +180 +180 +130 +130 +130 +130

50 65+414 +530 +236 +264 +310 +380 +186 +214 +260 +330+340 +340 +190 +190 +190 +190 +140 +140 +140 +140

65 80+434 +550 +246 +274 +320 +390 +196 +224 +270 +340+360 +360 +200 +200 +200 +200 +150 +150 +150 +150

80 100+467 +600 +274 +307 +360 +440 +224 +257 +310 +390+380 +380 +220 +220 +220 +220 +170 +170 +170 +170

100 120+497 +630 +294 +327 +380 +460 +234 +267 +320 +400+410 +410 +240 +240 +240 +240 +180 +180 +180 +180

D E f

8 9 10 11 12 7 8 9 6 7 8 9

0 3+34 +45 +60 +80 +120 +24 +28 +39 +12 16 +20 +31+20 +20 +20 +20 +20 +14 +14 +14 +6 +6 +6 +6

3 6+48 +60 +78 +105 +150 +32 +38 +50 +18 +22 +28 +40+30 +30 +30 +30 +30 +20 +20 +20 +10 +10 +10 +10

6 10+62 +76 +98 +130 +190 +40 +47 +61 +22 +28 +35 +49+40 +40 +40 +40 +40 +25 +25 +25 +13 +13 +13 +13

10 18+77 +93 +120 +160 +230 +50 +59 +75 +27 +34 +43 +59+50 +50 +50 +50 +50 +32 +32 +32 +16 +16 +16 +16

18 30+98 +117 +149 +195 +275 +61 +73 +92 +33 +41 +53 +72+65 +65 +65 +65 +65 +40 +40 +40 +20 +20 +20 +20

30 50+119 +142 +180 +240 +75 +89 +112 +41 +50 +64 +87+80 +80 +80 +80 +50 +50 +50 +25 +25 +25 +25

50 80+146 +174 +220 +290 +90 +106 +134 +49 +60 +76 +104+100 +100 +100 +100 +60 +60 +60 +30 +30 +30 +30

80 120+174 +207 +260 +340 +107 +126 +159 +58 +71 +90 +123+120 +120 +120 +120 +72 +72 +72 +36 +36 +36 +36

120 180+148+85

180 250+172+100

Reamers and Countersinks

Nominal diameterin mm

over to

Nominal diameterin mm

over to

the most common tolerance zones in µm

Reamers

163

G H J

6 7 6 7 8 9 10 11 12 6 7 8

0 3+8 +12 +6 +10 +14 +25 +40 +60 +100 +2 +4 +6+2 +2 0 0 0 0 0 0 0 -4 -6 -8

3 6+12 +16 +8 +12 +18 +30 +48 +75 +120 +5 +6 +10+4 +4 0 0 0 0 0 0 0 -3 -6 -8

6 10+14 +20 +9 +15 +22 +36 +58 +90 +150 +5 +8 +12+5 +5 0 0 0 0 0 0 0 -4 -7 -10

10 18+17 +24 +11 +18 +27 +43 +70 +110 +180 +6 +10 +15+6 +6 0 0 0 0 0 0 0 -5 -8 -12

18 30+20 +28 +13 +21 +33 +52 +84 +130 +210 +8 +12 +20+7 +7 0 0 0 0 0 0 0 -5 -9 -13

30 50+25 +34 +16 +25 +39 +62 +100 +160 +250 +10 +14 +24+9 +9 0 0 0 0 0 0 0 -6 -11 -15

50 80+29 +40 +19 +30 +46 +74 +120 +190 +300 +13 +18 +28+10 +10 0 0 0 0 0 0 0 -6 -12 -18

80 120+34 +47 +22 +35 +54 +87 +140 +220 +350 +16 +22 +34+12 +12 0 0 0 0 0 0 0 -6 -13 -20

120 180+54 +25 +40 +63 +100 +160 +250 +18 +26 +41+14 0 0 0 0 0 0 -7 -14 -22

180 250+61 +29 +46 +72 +115 +185 +290 +22 +30 +47+15 0 0 0 0 0 0 -7 -16 -25

JS k M

6 7 8 9 6 7 8 6 7 8

0 3+3 +5 +7 +12,5 0 0 0 -2 -2 -4-3 -5 -7 -12,5 -6 -10 -14 -8 -12 -18

3 6+4 +6 +9 +15 +2 +3 +5 -1 0 +2-4 -6 -9 -15 -6 -9 -13 -9 -12 -16

6 10+4,5 +7,5 +11 +18 +2 +5 +6 -3 0 +1-4,5 -7,5 -11 -18 -7 -10 -16 -12 -215 -21

10 18+5,5 +9 +13,5 +21,5 +2 +6 +8 -4 0 +2-5,5 -9 -13,5 -21,5 -9 -12 -19 -15 -18 -25

18 30+6,5 +10,5 +16,5 +26 +2 +6 +10 -4 0 +4-6,5 -10,5 -16,5 -26 -11 -15 -23 -17 -21 -29

30 50+8 +12,5 +19,5 +31 +3 +7 +12 -4 0 +5-8 -12,5 -19,5 -31 -13 -18 -27 -20 -25 -34

50 80+9,5 +15 +23 +37 +4 +9 +14 -5 0 +5-9,5 -15 -23 -37 -15 -21 -32 -24 -30 -41

80 120+11 +17,5 +27 +43,5 +4 +10 +16 -6 0 +6-11 -17,5 -27 -43,5 -18 -25 -38 -28 -35 -48

120 180+4 +12

-21 -28

180 250+5 +13

-24 -33

Reamers and Countersinks

Nominal diameterin mm

over to

Nominal diameterin mm

over to

the most common tolerance zones in µm

164

n P R

6 7 8 9 10 11 6 7 9 6 7

0 3-4 -4 -4 -4 -4 -4 -6 -6 -6 -10 -10

-10 -14 -8 -29 -44 -64 -12 -16 -31 -16 -20

3 6-5 -4 -2 0 0 0 -9 -8 -12 -12 -11

-13 -16 -20 -30 -48 -75 -17 -20 -42 -20 -23

6 10-7 -4 -3 0 0 0 -12 -9 -15 -16 -13

-16 -19 -25 -36 -58 -90 -21 -24 -51 -25 -28

10 18-9 -5 -3 0 0 0 -15 -11 -18 -20 -16

-20 -23 -30 -43 -70 -110 -26 -29 -61 -31 -34

18 30-11 -7 -3 0 0 0 -18 -14 -22 -24 -20-24 -28 -36 -52 -84 -130 -31 -35 -74 -37 -41

30 50-12 -8 -3 0 0 0 -21 -17 -26 -29 -25-28 -33 -42 -62 -100 -160 -37 -42 -88 -45 -50

50 65-14 -9 -4 0 0 0 -26 -21 -32 -35 -30-33 -39 -50 -74 -120 -190 -45 -51 -106 -54 -60

65 80-14 -9 -4 0 0 0 -26 -21 -32 -37 -32-33 -39 -50 -74 -120 -190 -45 -51 -106 -56 -62

80 100-16 -10 -4 0 0 0 -30 -24 -37 -44 -38-38 -45 -58 -87 -140 -220 -52 -59 -124 -66 -73

100 120-16 -10 -4 0 0 0 -30 -24 -47 -41-38 -45 -58 -87 -140 -220 -52 -59 -69 -76

S t U x Z

6 7 6 6 7 10 10 11 10 11

0 3-14 -14 -18 -18 -18 -18 -20 -20 -26 -26-20 -24 -24 -24 -28 -58 -60 -80 -66 -86

3 6-16 -15 -20 -20 -19 -23 -28 -28 -35 -35-24 -27 -28 -28 -31 -71 -76 -103 -83 -110

6 10-20 -17 -25 -25 -22 -28 -34 -34 -42 -42-29 -32 -34 -34 -37 -86 -92 -124 -100 -132

10 14-25 -21 -30 -30 -26 -33 -40 -40 -50 -50-36 -39 -41 -41 -44 -103 -110 -150 -120 -160

14 18-25 -21 -30 -30 -26 -33 -45 -45 -60 -60-36 -39 -41 -41 -44 -103 -115 -155 -130 -170

18 24-31 -27 -37 -37 -33 -41 -54 -54 -73 -73-44 -48 -50 -50 -54 -125 -138 -184 -157 -203

24 30-31 -27 -37 -44 -40 -48 -64 -64 -88 -88-44 -48 -50 -57 -61 -132 -148 -194 -172 -218

30 40-38 -34 -43 -55 -51 -60 -80 -80 -112 -112-54 -59 -59 -71 -76 -160 -180 -240 -212 -272

40 50-38 -34 -49 -65 -61 -70 -97 -97 -136 -136-54 -59 -65 -81 -86 -170 -197 -257 -236 -296

50 65-47 -42 -60 -81 -76 -87 -122 -122 -172 -172-66 -72 -79 -100 -106 -207 -242 -312 -292 -362

65 80-53 -48 -69 -96 -91 -102 -146 -146 -210 -210-72 -78 -88 -115 -121 -222 -266 -336 -330 -400

80 100-64 -58 -84 -117 -111 -124 -178 -178 -258 -258-86 -93 -106 -139 -146 -264 -318 -398 -398 -478

100 120-72 -66 -97 -137 -131 -144 -210 -210 -310 -310-94 -101 -119 -159 -166 -284 -350 -430 -450 -530

Reamers and Countersinks

Nominal diameterin mm

over to

Nominal diameterin mm

over to

the most common tolerance zones in µm

Reamers

165

d2

Reamers and Countersinks

Short counterbores: Assembly instructions

For automatic machines we recommend that short counterbores be secured in the holder by the use of one of the following 2 alternatives:

a) Locking with safety bolt Guhring no. 1648 The safety bolt is screwed into the short counterbore and clamped in the holder (Guhring no. 1629, 1630) by means of 2 set screws.

b) Locking with pilot Guhring no. 1645 The pilot together with the locknut, Guhring no. 1649, locks the short counterbore in the holder (Guhring no. 1629, 1630)

Grease pilot on seat d2 and insert in hole of short counterbore. Attach nuts (exception: Guhring no. 1615). Set play and nuts. When mounted, the pilot must be easy to turn.

Mounting of pilot Guhring no. 1615

in short counterbores Guhring no. 1602 and 1603, for short taper size 0. The pilot is held directly in the short counterbore by 1 set screw, Guhring no. 1624.

Mounting of pilot Guhring no. 1616

a) in short counterbores Guhring no. 1601, 1602 and 1605, taper size 1-7.The pilot should be adjusted with the 2 locknuts so as to ensure a play of approx. 0.1 mm between pilot and short counterbore.

b) in short counterbores Guhring no. 1603, 1604, 1606

For carbide-tipped short counterbores insert the protective washer as per Guhring no. 1621 between the pilot and cutting edge with a play of approx. 0.1 mm so as to protect the cutting edge corner.

Mounting of pilot Guhring no. 1617

a) in all short counterbores except Guhring no. 1654. Always insert protective washer, Guhring no. 1621, between tool and pilot by ensuring a play of approx. 0.1 mm.

play app. 0.1 mm

play app. 0.1 mm

Guhring no. 1624

play app. 0.1 mm

Guhring no. 1621

Guhring no. 1621

1. tool safety locking 2. Mounting of pilot

166 Reamers and Countersinks

Short counterbores: Assembly instructions

b) in counterbore indexable insert Guhring no. 1654

Mounting of pilot requires no protective washer as the tool is provided with a special supporting face. Exception: pilot with reduced diameter (see table below).

Mounting of pilot for tool safety locking Guhring no. 1645 in all short counterbores

Replace extractor bush in holder (see below) with locknut Guhring no. 1649. Insert counterbore in holder as described under item 3. Turn pilot together with protective washer and tighten.

Mounting of pilots in short counterbores with pilot diame-ter smaller (dmin) than those of the hole

When inserting a pilot with a diameter smaller than dmin insert several washers Guhring no. 1621 between the counterbore and nuts by ensuring a play of 0.2 to 1.0 mm in relation to the counterbore size. Thus, the axial pressure generated by the pilot is absorbed by the holder and not by the counterbore thus avoiding possible damage to the cutting edges.

Limiting values for pilot diameter mm dmin

Taper size HSS-counterbore Carbide counterbore

1 4.5 6.5 2 6.0 8.5 3 7.0 9.5 4 9.0 12.0 5 11.0 15.0 5.5 12.0 18.0 6 14.0 19.0 7 17.0 22.0

Thoroughly degrease inside taper of holder as well as out-side taper of short counterbore. The tapers are precision ground. Proper seating is therefore only ensured when both inside and outside tapers are completely free from grease and foreign matter.

When mounting the short counterbore in the holder, turn it to the right until the drive pin stops. Fasten by tapping the holder against a hard wood, aluminium or lead surface.

a) for short counterbores with pilots use extractor Guhring no. 1650. Suitable for extracting short counterbore with taper sizes 1 to 7 from holders of Guhring no. 1625, 1626, 1627 and 1628.

b) with extractor Guhring no. 1651

Suitable for extracting short counterbores with taper sizes 1 to 7 from the holders of Guhring no. 1625, 1626, 1627 and 1628 as well as from holders Guhring no. 1629 and 1630.

Guhring no. 1649

holderwithextractor bush

applicationwithout pilot

extractor bush

2. Mounting of pilot 3. Mounting of short counterbore in holder

4. Removal of short counterbore from holder

play 0.2…1.0 mm

locating face

dm

in Guhring no. 1621

167

Ø20,015

Ø19,4

20,8

26,2

0,55

X

45°

R0,05

45°

18

Ra 1

,6

Ø 0,1

Ø16 H7

96

0,1

A - A

A

A

Reamers and Countersinks

Special PcD with center point

To combine the operations drilling and reaming of

shockabsorber holes in an AlMgSi F31 ABS casing, we

have developed a PCD-tipped solid carbide drill with

continuous PCD tip and center point.

It is possible with this tool to machine the very tough,

long-chipping material to the required IT7 quality. In

addition, the bottom of the hole must be shaped as a

radius, otherwise groove forces through high system

pressure would develop.

PcD-tipped step reamer withfour PcD supporting strips.

For the machining of cylinder bores for a regula-

ting piston in an AlSi9Mg (Cu) transmission casing

we have developed a PCD-tipped step reamer with

four PCD supporting strips that fulfills the specific

demands of this machining task, i.e. cutting process

interrupted by oil ducts, small diameter tolerances

(IT6) and high demands on circularity and surface

quality with a cutting speed of 201 m/min and a feed

rate of 0.18 mm/rev. It achieves a tool life of up to

300,000 holes.

Since the mid 80‘s Guhring has produced tools with PCD cutting edges. Today, the development and

the production of PCD tools is one of the company‘s high-tech divisions. Here, complex tools for highly

specialised machining operations are developed, naturally this also includes reamers for the most varying of

applications.

Thanks to three locations, i.e. Germany, Czechia and USA, Guhring is able to develop and quickly supply tools

according to customer requirements anywhere in the world.

Special PcD reamers

detail x

168

Störkontur

28,9

Ø 12,005

20°

6

0,5

15

Ø18 H9A - A

A A

Reamers and Countersinks

Special PcD reamer with supports

For the reaming of holes for the positioning of

hydraulic balancing elements for tappet clearance

in an AlSi10Mg(Cu) V6 turbo-diesel engine we have

developed a PCD-tipped stepped reamer with PCD

supporting strips.

Long cutting interruptions in varying planes and

directions, the close tolerance as well as high

surface quality and small deviations in concentricity

necessitated the development of this special tooling

solution.

The Guhring developed tool achieves a cutting

speed of 377 m/min, a feed rate of 0.2 mm/rev. and

a tool life of up to 120,000 holes.

PcD-tipped reamer with adjustable finishing edge and fixed roughing edge

A hole with a large error in circularity, up to 35 µm,

caused by the position of the hole in the cylinder

head, a diameter tolerance of IT9, high demands for

surface quality and a tool life of at least 30,000 holes

as well as a maximum error in circularity of 20 µm

are the requirements for reaming sealing holes for a

secondary air inlet in a AlSi10Mg (Cu) cylinder head

for a six cylinder in-line engine.

Our solution is a PCD-tipped reamer with an

adjustable finishing edge and a fixed roughing edge,

satisfying the requirements regarding quality and

with up to 49,000 holes actually exceeding the tool

life requirement.

Special PcD reamers

Interference contur

169Reamers and Countersinks

conditions of sale

Packaging details

Bank details Deutsche Bank AG Albstadt (BLZ 653 700 75) Konto-Nr.: 10 41 25 SWIFT-Code: DEUT DE SS 653Commerzbank AG Albstadt (BLZ 653 400 04) Konto-Nr.: 940 65 62 SWIFT-Code: COBA DE FF 653Südwestbank Sigmaringen (BLZ 600 907 00) Konto-Nr.: 645 381 004 SWIFT-Code: SWBS DE SSSparkasse Zollernalb (BLZ 653 512 60) Konto-Nr.: 62 407 902 SWIFT-Code: SOLA DE STPostbank Stuttgart (BLZ 600 100 70) Konto-Nr.: 7473-702

All prices in EuroAll prices listed in the catalogue are indicated in Euro, exclusively value added tax.

General terms of deliveryDelivery is subject to our terms of delivery and pay-ment which can be supplied to you on request.

conditions of sale for small batchesOn small orders an additional surcharge may be added.

conditions of sale for special toolsWhen ordering special tools, the quantity delivered can deviate by an average of 10 %, at least 2 items, from the original order. Payment is for the quantity supplied.

Standard rangeTools from the standard range are illustrated in bold in this catalogue. For most cutting tasks they provide an extremely economical solution. They are available immediately.

Obsolete rangeProducts that are not popular are listed in our obsolete range and illustrated in light in the catalogue. They are available only as long as the product is in stock. If products from the obsolete range are out of stock, production with short delivery is provided in the form of a special tool order. The prices are available on request.

Ordering possibilities

Existing products are subject to technical modifications. All products marked with “DIN”, deviating from the dimensions listed in the catalogue, can be delivered, as long as they are in conformity with the DIN standard form. The DIN standard forms are available at the “Deutsches Institut für Normung e.V.”, 10787 Berlin, or at www.din.de.

Please note

conditions of sale

Units per package

all DIN standardsand Guhring standards

all sizes supplied 1 unit per package

Standard

Reamers and countersinksall tool materials

Tool group

The additional charges for special tolerances are added to the net price of the nominal diameter, for intermediate sizes it is added to the net price of the following size. A single additional charge applies to special tolerances for intermediate sizes. The additional charges apply to straight shank reamers, not to adjustable hand reamers, expanding reamers and stepped reamers.Prices for intermediate sizes for the tools mentioned above and prices of any sizes not indicated in the standard range are available on request.

note:Our products are manufactured using semi-finished blanks. Should there be no semi-finished blanks in stock for an intermediate size, the next size-up will be used. In such cases tool lengths correspond to next higher size tool diameter.

Additional charges

from quantity

for all diametersadditonal charge

net price per item in €

1 20.00

2 10.00

3 8.00

4 7.00

5 5.00

6 - 9 4.00

10 - 14 3.00

15 - 19 2.00

170

bar

Reamers and Countersinks

questionnaire special taper reamer

P.O. Box 10 02 47D-72423 Albstadt Telephone: +49 74 3117-0Fax: +49 74 3117-2 79Internet: www.guehring.de

Contact

Customer no. New cust. RFQ/P.O. number

Company Contact

Street Town/postcode

Telephone Fax

Date Signature

Notes/drawings:

inquiry Order per fax: +49 74 31 17-2 79(Please fill in your required parameters into the yellow boxes)

Workpiece (if possible with technical drawing)Nominal diameter of hole: Hole zone tol.: Reaming depth:

Hole type: Through hole Blind hole

Workpiece material: Surface quality (Rz/Ra):

tool design solid carbide carbide tipped HSS-E cermetShank: DIN 6535 (h6): Ø mm

straight: Ø mm

Morse taper: Morse taper size

Required reach: mm

Reamer type: Hand reamer Machine reamer Cooling: external int.: MQL

Additional detailsMachine type:

Tool holder: Hydr. expans./shrink fit chucks Collet Drilling chuck

Other:

171

bar

Reamers and Countersinks

questionnaire special reamers

P.O. Box 10 02 47D-72423 Albstadt Telephone: +49 74 3117-0Fax: +49 74 3117-2 79Internet: www.guehring.de

Contact

Customer no. New cust. RFQ/P.O. number

Company Contact

Street Town/postcode

Telephone Fax

Date Signature

Notes/drawings:

In order to provide the optimal solution for your specific taper reamer application, please complete the que-stionnaire and include a drawing if possible. One of our reaming experts will contact you as soon as possi-ble.

Workpiece (if possible with technical drawing)Taper ratio: : small Ø: mm large Ø: mm

Taper length: mm Straight pilot hole: with Ø mm

Pre-drilling taper/step design small Ø mm large Ø mm

Workpiece material: Surface quality (Rz/Ra):

tool design solid carbide carbide tipped HSS-E Shank: DIN 6535 (h6): Ø mm

straight: Ø mm

Morse taper: Morse taper size

Required reach: mm

Reamer type: Hand reamer Machine reamer Cooling: external int.: MQL

Additional details

Machine type:

Tool holder: Hydr. expans./shrink fit chucks Collet Drilling chuck

Other:

inquiry Order per fax: +49 74 31 17-2 79(Please fill in your required parameters into the yellow boxes)

115

944/

0746

-VIII

-08

• Pr

inte

d in

Ger

man

y

no liability can be accepted for printing errors or technical changes of any kind.Our conditions of Sale and terms of Payment apply. Available on request. terms of Payment apply. Available on request. tAll prices in EURO.

Guhring oHGP.O. Box 100247 · D-72423 Albstadt Herderstr. 50-54 · D-72458 Albstadt Telephone: +49 74 31 17-0Fax: +49 74 31 17-2 79www.guehring.de

OUR PRODUct RAnGE:

1. DRiLLinG tOOLSin HiGH SPEED StEEL AnD cARBiDETwist drillsRatio drillsMicro-precision drillsOil feed drillsSubland drillsCentre drillsCore drillsGun drillsDrilling systems with interchangeable inserts

2. tHREAD cUttinG tOOLSin HiGH SPEED StEEL AnD cARBiDE

Machine taps and fluteless tapsOil feed taps and oil feed fluteless tapsHand tapsThread milling cuttersDies

3. MiLLinG cUttERSin HiGH SPEED StEEL AnD cARBiDE

Ratio end millsSlot drills End millsRadius profile cuttersHard profile cuttersDiesinking cutters

4. REAMinG tOOLSin HiGH SPEED StEEL AnD cARBiDE

HPC and NC machine chucking reamersMachine and machine chucking reamersTaper pin reamers Hand reamers

5. cOUntERSinkinG tOOLSin HiGH SPEED StEEL AnD cARBiDE

Countersinks, counterbores and spot facersShort counterbores, back spot facersDe-burring tools

6. cUttinG tOOLSin ULtULtUL RA-HARD MAtMAtMA ERiALSFace milling cutter PF 1000Cermet and ceramic toolsPCD- and PCB-tipped tools

7. cOAtcOAtcOA ED tOOLSA-tools, TiAlN-coatedSuperA-tools, AlTiN-coatedC-tools, TiCN-coatedF-tools, FIRE-coated (allround)P-tools, AlCrNN-coatedS-tools, TiN-coated (allround)M-tools, MolyGlide-coated

8. MODULAR tOOLinG SyS SyS Sy tEMStOOLinG SySySy tEM GM 300Tool holders, clamping systems and accessories to ISO 12164, DIN 69893 and DIN 69871 for transfer lines, machining and turning centres

fLExiBLE tOOLinG SySySy tEM GE 100a tooling system for the combined machining operations facing, chamfering, boring, centering etc.

iSO inDExABLE inSERtS, SHORt cLAMPinG HOLDERS AnD kV 400 cARtRiDGES

9. Special toolstoolstto sketch or drawing, the more complex, the better

10. cARBiDESfOR PREciSiOn cUttinG tOOLS

11. cARBiDE SPEciAL PAR PAR P tSfOR tHE fORMinG, MAcHininG AnD WEARPROtEctiOn inDUStRy Cold heading dies, ribbed rolls, dies, mandrels, drawing dies, gear cutters, etc.

12. tOOL REStORAtiORAtiORA On SERVicERe-grinding, re-coating, tool management