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TAP

442

Forming Tap Selection Guide

Configuration and Lengthof hole to be tapped

Through Hole Blind HoleCham

fer Length

Surface Treatment

Page No.

Symbol

Product Nam

e

IT TAFLET-T

IT TAFLET-C

T TAFLET for Stainless Steel

T TAFLET

TiN Coating TAFLET

TAFLET-L

TAFLET for Steels

IT-TF-T

IT-TF-C

T-TF-SUS

T-TF

TiN-TF

TFL

TFS-ST

444

446

448

450

452

455

466

TiCN

C

C

TiCN

TiN

HOMO

2P

4P

2P

4P

2P

4P

2P

4P

2P

4P

2P

4P

2P

4P

FORMING TAPS (TAFLET)

TAP

443

Work Material

Low C

arbon Steels

S10C

S20C

Medium

Carbon Steels

S22C

S40C

High C

arbon Steels

S45C

Cold Rolled Sheet Steels

SPCSPH

Structual A

lloy Steels

SCMSNCN

Stainless Steels

SUS

Alum

inum

Tapping Speed

When tapping with TAFLET, there are no obstacles (e.g. chips), so it can be processed at a higher speed than cutting taps.But the choice should be governed by consideration of work materials, oil type and machines. Generally speaking, 5-20m/minute is the most frequently used speed, but high-speed tapping of 30m or more/minute may sometimes be performed inparallel with press punching work. However, very high speed shortens the life span of taps due to early wear and heat-induced galling, so it is recommendable to restrain working speed.

AL

Alum

inum

Diecasting

ACADC

Zinc D

iecastingZDC

Copper

CU

Brass

BS

Brass C

asting

BSC

Titanium A

lloy

Best Good

Workpiece Internal thread length Tapping speed of ordinary TAFLET

Tapping speed of Coated TAFLET

Nonferrous metals, ADC, AC, ZDC, Al alloy.Brass, etc.

Low and medium carbon steels, SS material,S35C, Rolled plate, SPC, SPH, SUM

Stainless steels(SUS), Heat resistant steels(SUH), etc.

High carbon steels, Alloy steels, Hardenedsteels, S45C, SCM, SNCM, SNC, etc.

1.5D or less 15~30m/min

12~20m/min

10~20m/min

8~15m/min

5~10m/min

3~8m/min

5~10m/min

3~6m/min

20~50m/min

15~40m/min

15~30m/min

10~25m/min

10~25m/min

8~20m/min

10~20m/min

8~15m/min

Over 1.5D

Over 1.5D

Over 1.5D

Over 1.5D

1.5D or less

1.5D or less

1.5D or less

FORMING TAPS (TAFLET)

TAP

444

IT-TF-T

Metric

LcNominal sizeItem No. Limit Type L l Ds Ln Dn K LkDimensions (mm) Radial Oil groove

××××××××××××××××××××××××××××××××××××××××××××××××

M1M1M1M1M1M1M1.2M1.2M1.2M1.2M1.2M1.2M1.4M1.4M1.4M1.4M1.4M1.4M1.6M1.6M1.6M1.6M1.6M1.6M1.7M1.7M1.7M1.7M1.7M1.7M2M2M2M2M2M2M2.5M2.5M2.5M2.5M2.5M2.5M2.6M2.6M2.6M2.6M2.6M2.6

0.250.250.250.250.250.250.250.250.250.250.250.250.30.30.30.30.30.30.350.350.350.350.350.350.350.350.350.350.350.350.40.40.40.40.40.40.450.450.450.450.450.450.450.450.450.450.450.45

FORMING TAPS (TAFLET)IT TAFLET-THSSE TiCNTap material Surface treatment

TAP

445

LcNominal sizeCode No. Limit Type L l Ds Ln Dn K LkDimensions (mm) Radial Oil groove

××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××

M3M3M3M3M3M3M3.5M3.5M3.5M3.5M3.5M3.5M4M4M4M4M4M4M5M5M5M5M5M5M6M6M6M6M6M6M8M8M8M8M8M8M8M8M8M8M8M8M10M10M10M10M10M10M10M10M10M10M10M10M10M10M10M10M10M10M12M12M12M12M12M12

0.50.50.50.50.50.50.60.60.60.60.60.60.70.70.70.70.70.70.80.80.80.80.80.81111111.251.251.251.251.251.251111111.51.51.51.51.51.51.251.251.251.251.251.251111111.751.751.51.51.251.25

Metric

FORMING TAPS (TAFLET)IT TAFLET-THSSE TiCNTap material Surface treatment

IT-TF-T

TAP

446

IT-TF-C

Metric


××××××××××××××××××××××××××××××××××××××××××××××××

M1M1M1M1M1M1M1.2M1.2M1.2M1.2M1.2M1.2M1.4M1.4M1.4M1.4M1.4M1.4M1.6M1.6M1.6M1.6M1.6M1.6M1.7M1.7M1.7M1.7M1.7M1.7M2M2M2M2M2M2M2.5M2.5M2.5M2.5M2.5M2.5M2.6M2.6M2.6M2.6M2.6M2.6

0.250.250.250.250.250.250.250.250.250.250.250.250.30.30.30.30.30.30.350.350.350.350.350.350.350.350.350.350.350.350.40.40.40.40.40.40.450.450.450.450.450.450.450.450.450.450.450.45

FORMING TAPS (TAFLET)IT TAFLET-CHSSE CTap material Surface treatment

TAP

447


××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××


0.50.50.50.50.50.50.60.60.60.60.60.60.70.70.70.70.70.70.80.80.80.80.80.81111111.251.251.251.251.251.251111111.51.51.51.51.51.51.251.251.251.251.251.251111111.751.751.51.51.251.25

Metric

FORMING TAPS (TAFLET)IT TAFLET-CHSSE CTap material Surface treatment

IT-TF-C

TAP

448

T-TF-SUS

Metric


×××××××××××××××××××××××××××××××××××××××××××××

M1.4M1.4M1.4M1.6M1.6M1.6M1.7M1.7M1.7M2M2M2M2M2M2M2.5M2.5M2.5M2.5M2.5M2.5M2.6M2.6M2.6M2.6M2.6M2.6M3M3M3M3M3M3M3.5M3.5M3.5M3.5M3.5M3.5M4M4M4M4M4M4

0.30.30.30.350.350.350.350.350.350.40.40.40.40.40.40.450.450.450.450.450.450.450.450.450.450.450.450.50.50.50.50.50.50.60.60.60.60.60.60.70.70.70.70.70.7

FORMING TAPS (TAFLET)IT TAFLET for Stainless SteelHSSE CTap material Surface treatment

TAP

449


××××××××××××××××××××××××××××××××××××××××××××××××

M5M5M5M5M5M5M6M6M6M6M6M6M8M8M8M8M8M8M8M8M8M8M8M8M10M10M10M10M10M10M10M10M10M10M10M10M10M10M10M10M10M10M12M12M12M12M12M12

0.80.80.80.80.80.81111111.251.251.251.251.251.251111111.51.51.51.51.51.51.251.251.251.251.251.251111111.751.751.51.51.251.25

Metric

FORMING TAPS (TAFLET)IT TAFLET for Stainless SteelHSSE CTap material Surface treatment

T-TF-SUS

TAP

450

T-TF

Metric


××××××××××××××××××××××××××××××××××××

M1.4M1.4M1.4M1.7M1.7M1.7M2M2M2M2M2M2M2.3M2.3M2.3M2.3M2.3M2.3M2.5M2.5M2.5M2.5M2.5M2.5M2.6M2.6M2.6M2.6M2.6M2.6M3M3M3M3M3M3

0.30.30.30.350.350.350.40.40.40.40.40.40.40.40.40.40.40.40.450.450.450.450.450.450.450.450.450.450.450.450.50.50.50.50.50.5

Advantages of T TAFLET

FORMING TAPS (TAFLET)IT TAFLETHSSV TiCNTap material Surface treatment

TAP

451


××××××××××××××××××××××××××××××××××××××××××××××××××××××

M3.5M3.5M3.5M3.5M3.5M3.5M4M4M4M4M4M4M5M5M5M5M5M5M6M6M6M6M6M6M7M7M7M7M7M7M8M8M8M8M8M8M8M8M8M8M8M8M10M10M10M10M10M10M10M10M10M10M10M10

0.60.60.60.60.60.60.70.70.70.70.70.70.80.80.80.80.80.81111111111111.251.251.251.251.251.251111111.51.51.51.51.51.51.251.251.251.251.251.25

Metric

FORMING TAPS (TAFLET)IT TAFLETHSSV TiCNTap material Surface treatment

T-TF

TAP

452

TiN-TF

Metric


××××××××××××××××××××××××××××××××××××

M1.4M1.4M1.4M1.7M1.7M1.7M2M2M2M2M2M2M2.3M2.3M2.3M2.3M2.3M2.3M2.5M2.5M2.5M2.5M2.5M2.5M2.6M2.6M2.6M2.6M2.6M2.6M3M3M3M3M3M3

0.30.30.30.350.350.350.40.40.40.40.40.40.40.40.40.40.40.40.450.450.450.450.450.450.450.450.450.450.450.450.50.50.50.50.50.5

Advantages of TiN Coated TAFLET

FORMING TAPS (TAFLET)TiN Coating TAFLETHSSV TiNTap material Surface treatment

TAP

453


××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××

M3.5M3.5M3.5M3.5M3.5M3.5M4M4M4M4M4M4M5M5M5M5M5M5M6M6M6M6M6M6M7M7M7M7M7M7M8M8M8M8M8M8M8M8M8M8M8M8M10M10M10M10M10M10M10M10M10M10M10M10M10M10M10M10M10M10M12M12M12M12M12M12

0.60.60.60.60.60.60.70.70.70.70.70.70.80.80.80.80.80.81111111111111.251.251.251.251.251.251111111.51.51.51.51.51.51.251.251.251.251.251.251111111.751.751.51.51.251.25

Metric


TiN-TF

TAP

454

TiN-TF


××××××××××××××××

M14M14M14M14M16M16M16M16M18M18M18M18M20M20M20M20

221.51.5221.51.52.52.51.51.52.52.51.51.5

Metric


TAP

455

Metric


××××××××××××××××××××××××××××××××××××××××

M1M1M1M1M1M1M1M1M1M1M1M1M1M1M1M1M1M1M1M1M1.1M1.1M1.1M1.1M1.1M1.1M1.1M1.1M1.1M1.1M1.1M1.1M1.1M1.1M1.1M1.1M1.1M1.1M1.1M1.1

0.250.250.250.250.250.250.250.250.250.250.20.20.20.20.20.20.20.20.20.20.250.250.250.250.250.250.250.250.250.250.20.20.20.20.20.20.20.20.20.2

FORMING TAPS (TAFLET)TAFLET-LHSSVTap material

TFL

TAP

456

TFL


××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××

M1.2M1.2M1.2M1.2M1.2M1.2M1.2M1.2M1.2M1.2M1.2M1.2M1.2M1.2M1.2M1.2M1.2M1.2M1.2M1.2M1.4M1.4M1.4M1.4M1.4M1.4M1.4M1.4M1.4M1.4M1.4M1.4M1.4M1.4M1.4M1.4M1.4M1.4M1.4M1.4M1.6M1.6M1.6M1.6M1.6M1.6M1.6M1.6M1.6M1.6M1.6M1.6M1.6M1.6M1.6M1.6M1.6M1.6M1.6M1.6

0.250.250.250.250.250.250.250.250.250.250.20.20.20.20.20.20.20.20.20.20.30.30.30.30.30.30.30.30.30.30.20.20.20.20.20.20.20.20.20.20.350.350.350.350.350.350.350.350.350.350.20.20.20.20.20.20.20.20.20.2

Metric

FORMING TAPS (TAFLET)TAFLETHSSVTap material

TAP

457


××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××

M1.7M1.7M1.7M1.7M1.7M1.7M1.7M1.7M1.7M1.7M1.7M1.7M1.7M1.7M1.7M1.7M1.7M1.7M1.7M1.7M1.8M1.8M1.8M1.8M1.8M1.8M1.8M1.8M1.8M1.8M1.8M1.8M1.8M1.8M1.8M1.8M1.8M1.8M1.8M1.8M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2

0.350.350.350.350.350.350.350.350.350.350.20.20.20.20.20.20.20.20.20.20.350.350.350.350.350.350.350.350.350.350.20.20.20.20.20.20.20.20.20.20.40.40.40.40.40.40.40.40.40.40.250.250.250.250.250.250.250.250.250.25

Metric


TFL

TAP

458

TFL


××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××

M2.2M2.2M2.2M2.2M2.2M2.2M2.2M2.2M2.2M2.2M2.2M2.2M2.2M2.2M2.2M2.2M2.2M2.2M2.2M2.2M2.3M2.3M2.3M2.3M2.3M2.3M2.3M2.3M2.3M2.3M2.3M2.3M2.3M2.3M2.3M2.3M2.3M2.3M2.3M2.3M2.5M2.5M2.5M2.5M2.5M2.5M2.5M2.5M2.5M2.5M2.5M2.5M2.5M2.5M2.5M2.5M2.5M2.5M2.5M2.5

0.450.450.450.450.450.450.450.450.450.450.250.250.250.250.250.250.250.250.250.250.40.40.40.40.40.40.40.40.40.40.250.250.250.250.250.250.250.250.250.250.450.450.450.450.450.450.450.450.450.450.350.350.350.350.350.350.350.350.350.35

Metric


TAP

459


××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××

M2.6M2.6M2.6M2.6M2.6M2.6M2.6M2.6M2.6M2.6M2.6M2.6M2.6M2.6M2.6M2.6M2.6M2.6M2.6M2.6M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3.5M3.5M3.5M3.5M3.5M3.5M3.5M3.5M3.5M3.5

0.450.450.450.450.450.450.450.450.450.450.350.350.350.350.350.350.350.350.350.350.60.60.60.60.60.60.60.60.60.60.50.50.50.50.50.50.50.50.50.50.350.350.350.350.350.350.350.350.350.350.60.60.60.60.60.60.60.60.60.6

Metric


TFL

TAP

460

TFL


××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××

M3.5M3.5M3.5M3.5M3.5M3.5M3.5M3.5M3.5M3.5M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4M4.5M4.5M4.5M4.5M4.5M4.5M4.5M4.5M4.5M4.5M4.5M4.5M4.5M4.5M4.5M4.5M4.5M4.5M4.5M4.5

0.350.350.350.350.350.350.350.350.350.350.750.750.750.750.750.750.750.750.750.750.70.70.70.70.70.70.70.70.70.70.50.50.50.50.50.50.50.50.50.50.750.750.750.750.750.750.750.750.750.750.50.50.50.50.50.50.50.50.50.5

Metric


TAP

461


××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××

M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5M5.5M5.5M5.5M5.5M5.5M5.5M5.5M5.5M5.5M5.5M5.5M5.5M5.5M5.5M5.5M5.5M5.5M5.5M5.5M5.5M6M6M6M6M6M6M6M6M6M6

0.90.90.90.90.90.90.90.90.90.90.80.80.80.80.80.80.80.80.80.80.50.50.50.50.50.50.50.50.50.50.90.90.90.90.90.90.90.90.90.90.50.50.50.50.50.50.50.50.50.51111111111

Metric


TFL

TAP

462

TFL


××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××

M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M7M8M8M8M8M8M8M8M8M8M8

0.750.750.750.750.750.750.750.750.750.750.50.50.50.50.50.50.50.50.50.511111111110.750.750.750.750.750.750.750.750.750.750.50.50.50.50.50.50.50.50.50.51.251.251.251.251.251.251.251.251.251.25

Metric


TAP

463


××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××


11111111110.750.750.750.750.750.750.750.750.750.750.50.50.50.50.50.50.50.50.50.51.251.251.251.251.251.251.251.251.251.2511111111110.750.750.750.750.750.750.750.750.750.75

Metric


TFL

TAP

464

TFL


××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××


0.50.50.50.50.50.50.50.50.50.51.51.51.51.51.51.51.51.51.51.51.251.251.251.251.251.251.251.251.251.2511111111110.750.750.750.750.750.750.750.750.750.750.50.50.50.50.50.50.50.50.50.5

Metric


TAP

465


××××××××××××××××××××

M11M11M11M11M11M11M11M11M11M11M12M12M12M12M12M12M12M12M12M12

1.51.51.251.25110.750.750.50.51.751.751.51.51.251.25110.50.5

Metric


TFL

TAP

466

TFS-ST

Metric


××××××××××××××××××××××××××××××××××××××××××

M1.4M1.4M1.4M1.4M1.4M1.4M1.6M1.6M1.6M1.6M1.6M1.6M1.7M1.7M1.7M1.7M1.7M1.7M2M2M2M2M2M2M2.3M2.3M2.3M2.3M2.3M2.3M2.5M2.5M2.5M2.5M2.5M2.5M2.6M2.6M2.6M2.6M2.6M2.6

0.30.30.30.30.30.30.350.350.350.350.350.350.350.350.350.350.350.350.40.40.40.40.40.40.40.40.40.40.40.40.450.450.450.450.450.450.450.450.450.450.450.45

FORMING TAPS (TAFLET)TAFLET for SteelsHSSV HOMOTap material Surface treatment

TAP

467


××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××

0.50.50.50.50.50.50.60.60.60.60.60.60.70.70.70.70.70.70.80.80.80.80.80.81111111111111.251.251.251.251.251.251111111.51.51.51.51.51.51.251.251.251.251.251.25111111

Metric



TFS-ST

TAP

468

TFS-ST


××××××××××××××××××××××××××××××××××××××××××××

M12M12M12M12M12M12M12M12M14M14M14M14M14M14M16M16M16M16M16M16M18M18M18M18M18M18M20M20M20M20M20M20M22M22M22M22M22M22M24M24M24M24M24M24

1.751.751.51.51.251.2511221.51.511221.51.5112.52.51.51.5112.52.51.51.5112.52.51.51.511331.51.511

Metric


TAP

469

Nominal size pitch100% 90% 80% 70%

Percentage of thread engagement hole diameter (mm)Limit for

class 2

M1

M1.1

M1.2

M1.4

M1.6

M1.7

M1.8

M2

M2.2

M2.3

M2.5

M2.6

M3

M3.5

M4

M4.5

M5

M5.5

M6

M7

M8

0.25

0.2

0.25

0.2

0.25

0.2

0.3

0.2

0.35

0.2

0.35

0.2

0.35

0.2

0.4

0.25

0.45

0.25

0.4

0.25

0.45

0.35

0.45

0.35

0.6

0.5

0.35

0.6

0.35

0.75

0.7

0.5

0.75

0.5

0.9

0.8

0.5

0.9

0.5

1

0.75

0.5

1

0.75

0.5

1.25

1

0.75

0.5

4

3

4

3

4

3

4

3

4

3

4

4

4

3

4

4

4

4

4

4

4

4

4

5

5

5

5

5

5

6

6

6

6

6

6

6

6

6

6

7

6

6

7

6

6

7

7

7

6

0.86

0.89

0.96

0.99

1.06

1.09

1.23

1.29

1.40

1.49

1.50

1.59

1.60

1.69

1.77

1.86

1.94

2.06

2.07

2.16

2.24

2.30

2.34

2.40

2.66

2.72

2.80

3.16

3.30

3.57

3.60

3.72

4.07

4.22

4.49

4.55

4.72

4.99

5.22

5.43

5.57

5.72

6.43

6.57

6.72

7.29

7.43

7.57

7.72

0.87

0.90

0.97

1.00

1.07

1.10

1.25

1.30

1.42

1.50

1.52

1.60

1.62

1.70

1.80

1.87

1.97

2.07

2.10

2.17

2.27

2.32

2.37

2.42

2.69

2.74

2.82

3.19

3.32

3.62

3.64

3.74

4.12

4.24

4.54

4.59

4.74

5.04

5.24

5.49

5.62

5.74

6.49

6.62

6.74

7.36

7.49

7.62

7.74

0.89

0.91

0.99

1.01

1.09

1.11

1.26

1.31

1.44

1.51

1.54

1.61

1.64

1.71

1.82

1.89

2.00

2.09

2.12

2.19

2.30

2.34

2.40

2.44

2.73

2.77

2.84

3.23

3.34

3.66

3.68

3.77

4.16

4.27

4.59

4.64

4.77

5.09

5.27

5.55

5.66

5.77

6.55

6.66

6.77

7.43

7.55

7.66

7.77

0.90

0.92

1.00

1.02

1.10

1.12

1.28

1.32

1.46

1.52

1.56

1.62

1.66

1.72

1.84

1.91

2.02

2.10

2.14

2.20

2.32

2.36

2.42

2.46

2.76

2.80

2.86

3.26

3.36

3.70

3.72

3.80

4.20

4.30

4.64

4.68

4.80

5.14

2.30

5.60

5.70

5.80

6.60

6.70

6.80

7.50

7.60

7.70

7.80

Nominal size pitch100% 90% 80% 70%

Percentage of thread engagement hole diameter (mm)Limit for

class 2

M9

M10

M11

M12

M14

M15

M16

M17

M18

M20

M22

M24

1.25

1

0.75

0.5

1.5

1.25

1

0.75

0.5

1.5

1

0.75

1.75

1.5

1.25

1

2

1.5

1.25

1

1.5

1

2

1.5

1

1.5

1

2.5

2

1.5

1

2.5

2

1.5

1

2.5

2

1.5

1

2

1.5

1

7

7

7

6

7

7

7

7

6

10

8

8

8

8

8

8

10

9

8

8

9

8

10

9

8

11

9

11

11

10

9

11

11

10

9

11

11

10

9

11

10

9

8.29

8.43

8.57

8.72

9.15

9.29

9.43

9.57

9.72

10.15

10.43

10.57

11.01

11.15

11.29

11.43

12.87

13.15

13.29

13.43

14.15

14.43

14.87

15.15

15.43

16.15

16.43

16.58

16.87

17.15

17.43

18.58

18.87

19.15

19.43

20.58

20.87

21.15

21.43

22.87

23.15

23.43

8.36

8.49

8.62

8.74

9.23

9.36

9.49

9.62

9.74

10.23

10.49

10.62

11.11

11.23

11.36

11.49

12.98

13.23

13.36

13.49

14.23

14.49

14.98

15.23

15.49

16.23

16.49

16.72

16.98

17.23

17.49

18.72

18.98

19.23

19.49

20.72

20.98

21.23

21.49

22.98

23.23

23.49

8.43

8.55

8.66

8.77

9.32

9.43

9.55

9.66

9.77

10.32

10.55

10.66

11.21

11.32

11.43

11.55

13.09

13.32

13.43

13.55

14.32

14.55

15.09

15.32

15.55

16.32

16.55

16.87

17.09

17.32

17.55

18.87

19.09

19.32

19.55

20.87

21.09

21.32

21.55

23.09

23.32

23.55

8.50

8.60

8.70

8.80

9.40

9.50

9.60

9.70

9.80

10.40

40.60

10.70

11.31

11.40

11.50

11.60

13.21

13.40

13.50

13.60

14.40

14.60

15.21

15.40

15.60

16.40

16.60

17.01

17.21

17.40

17.60

19.01

19.21

19.40

19.60

21.01

21.21

21.40

21.60

23.21

23.40

23.60

1. Determine hole diameter by tapping test. The dimensions in this table are for reference only.2. Tap limit is determined with 80% of the tolerance at the internal thread as an aim.

Hole sizes for Metric threads and tap limit of TAFLET

TAP

470

Cutting Tap Selection Guide

Cham

fer Length

Surface Treatment

Page No.

Symbol

Product Nam

e

T Spiral Taps

T Spiral Taps, Long Shank

T Spiral Taps

T Spiral Taps, for Stainless Steel

T Spiral Taps, for Over-sized

Spiral Taps, Low Helix Angle, for High Carbon Steels

T Spiral Pointed Taps

T Spiral Pointed Taps, Long Shank

T Spiral Pointed Taps, for Stainless Steels

TiN Coating T Spiral Pointed Taps

T Spiral Pointed Taps, for Over-sized

Tungsten Carbide Straight Fluted Taps

Straight Fluted Taps, for Diecasting

TSP

LT-TSP

TSP-1.5P

TSP-SUS

O-TSP

LOSP-3H

TiN-TSP

TiN-TSP-SUS

TGN

LT-TGN

TGN-SUS

O-TGN

TiN-TGN

TC-HT

HT-DC

HT-FC

P

P

SP

IRA

L PO

INTE

D TA

PS

(GU

S TA

PS

)P

IPE

TAP

S

472

475

476

477

478

479

480

481

482

485

486

487

489

490

HOMO

HOMO

HOMO

HOMO

HONO

TiN

TiN

HOMO

HOMO

HOMO

HOMO

TiN

HOMO

TiCN

2.5P

2.5P

1.5P

2.5P

2.5P

3P

2.5P

2.5P

5P

5P

5P

5P

5P

2P4P

1.5P3P

1.5P3P

5P

2P4P

Configuration and Lengthof hole to be tapped

Through Hole Blind Hole

TiN Coating T Spiral Taps

TiN Coating T Spiral Taps, For Stainless Steel

Straight Fluted Taps, for Cast Iron

Taper Pipe Thread Taps

Parallel Pipe Thread Taps

STRAIG

HT FLU

TEDTAPS (H

AND

TAPS)TUNGSTEN

CARBIDE TAPSS

PIR

AL FLU

TED

TAP

S

Cutting Tap

TAP

471

Cutting Tap Selection Guide

S10C

S20C

S22C

S40C

S45C SPCSPH

SCMSNCN

SUS SKD Fc FcD AI ACADC

ZDC Cu Bs BsC

Thermoplastic

Thermosetting

Plastic

Magnesium

Alloy

Titanium A

lloy

Brass C

asting

Brass

Copper

Zinc Diecasting

Alum

inum

Diecasting

Alum

inum

High Tension Cast Iron

Cast Iron

Tool Steels

Stainless Steels

Hardened Steels

Structural Alloy SteelsCold Rolled Sheet Steels

High C

arbon SteelsM

edium Carbon

SteelsLow

Carbon

Steels

Work Material

Cutting Tap

TAP

472

Application of tapping speed

Processing Data

(m/min) Tapping speed (m/min)

Low-carbon steels

Medium-carbon steels

High-carbon steels

Alloy steels

Hardened steels

Stainless steels

Precipitation hardened stainless steels

Tool steels

Ductile casting

Copper

Brass, Brass casting

Bronze, Bronze casting

Aluminum

Aluminum alloy casting

8~20

7~15

5~15

5~15

2~10

10~20

10~20

10~20

10~20

10~20

15~25

10~20

10~30

10~20

Work materials Tapping speed

Tap

Tap size

Work material

Tapping speed

Hole size

Thread length

Coolant

Machine

TSP for general mild steel

M6x1 GT6

General structural steel SS400

30m/min 1,600rpm

5.1mm, Blind hole

13mm

Non-water-soluble

Machining center

Tap

Tap size

Work material

Tapping speed

Hole size

Thread length

Coolant

Machine

TSP-SUS for stainless steel

M12x1.75 GT6

Stainless steel SUS304

10m/min 265rpm

10.4mm, Blind hole

20mm

Non-water-soluble

Machining center

Tap

Tap size

Work material

Tapping speed

Hole size

Thread length

Coolant

Machine

TSP-3H for high carbon steel

M12x1.75 GT8

Carbon steel S50C Hardened Seel HRC30

9.4m/min 250rpm

10.4mm, Blind hole

24mm

Non-water-soluble

Machining center

TSP

Cutting TapT Spiral TapsHSSV HOMOTap material Surface treatment

TAP

473

TSP

Metric

LcNominal sizeItem No. Limit Type L l Ds Ln Dn K LkDimensions (mm) Flutes

××××××××××××××××××××××××××××××××××××××××××××××××

M2M2.3M2.5M2.6M3M3M3.5M4M4M4M5M5M5M6M6M6M7M7M8M8M8M8M9M10M10M10M10M10M12M12M12M12M14M14M14M14M15M16M16M16M18M18M18M18M20M20M20M20

0.40.40.450.450.60.50.60.750.70.50.90.80.510.750.510.751.2510.750.51.251.51.2510.750.51.751.51.25121.51.2511.521.512.521.512.521.51


TAP

474

TSP


LcNominal sizeCode No. Limit Type L l Ds Ln Dn K LkDimensions (mm) Flutes

××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××

M22M22M22M24M24M24M24M25M26M27M27M27M28M30M30M30M30M32M32M32M33M33M33M33M34M34M34M35M35M35M36M36M36M36M38M38M39M39M39M39M40M40M40M42M42M42M42M45M45M45M45M48M48M48M48M48M50M52M52M56M56M56M60M60M64M64M64

2.51.51321.511.51.5321.51.53.5321.5321.53.5321.5321.5321.54321.521.54321.5321.54.5321.54.5321.554321.53535.5325.53643

Metric

TAP

475

Cutting Tap

LT-TSP

Metric


××××××××××××××××××××××××××××××××××××××××××××

M3M3M3M3M4M4M4M4M5M5M5M5M6M6M6M8M8M8M10M10M10M10M10M10M12M12M12M12M14M14M14M16M16M16M16M18M18M20M20M20M22M22M24M24

0.50.50.50.50.70.70.70.70.80.80.80.81111.251.251.251.51.51.51.251.251.251.751.751.51.25221.5221.51.52.51.52.52.51.52.51.531.5

T Spiral Taps, Long ShankHSSV HOMOTap material Surface treatment

TAP

476

Cutting TapT Spiral Taps, Long ShankHSSV HOMOTap material Surface treatment

Metric


×××××××××××××

M3M4M5M6M8M8M10M10M10M10M12M12M12

0.50.70.811.2511.51.2510.751.751.51.25

TSP-1.5P

TAP

477

Cutting TapT Spiral Taps, for Stainless SteelsHSSE HOMOTap material Surface treatment

TSP-SUS

Metric


×××××××××××××××××××××××××

M2M2.5M2.6M3M3.5M4M5M6M7M8M10M10M12M12M12M14M14M16M16M18M18M20M20M22M24

0.40.450.450.50.60.70.8111.251.51.251.751.51.2521.521.52.51.52.51.52.53

TAP

478

Cutting Tap

Metric


××××××××××

M3M4M5M6M8M10M10M12M12M12

0.50.70.811.251.51.251.751.51.25

T Spiral Taps, for Over-sizedHSSV HOMOTap material Surface treatment

O-TSP

TAP

479

Cutting Tap

LOSP-3H

Metric


××××××××××××××××××

M13M14M15M16M18M10M10M12M12M12M14M14M16M16M18M18M20M20

0.50.70.811.251.51.251.751.51.2521.521.52.51.52.51.5

Spiral Taps, Low Helix Angle, for High Carbon SteelsHSSETap material

TAP

480

Cutting Tap

Metric

Processing Data

Tap

Tap size

Work material

Tapping speed

Hole size

Thread length

Coolant

Machine

Durability of M6 x 1 on SS400


××××××××××××××××××××

M3M4M5M6M8M10M10M12M12M12M14M14M16M16M18M18M20M20M22M24

0.50.70.811.251.51.251.751.51.2521.521.52.51.52.51.52.53

TiN Coating T Spiral TapsHSSP TiNTap material Surface treatment

TiN-TSP

TAP

481

Cutting Tap

TiN-TSP-SUS

Metric


×××××××××××

M3M4M5M6M8M10M12M14M16M18M20

0.50.70.811.251.51.75222.52.5

TiN Coating-T Spiral Taps, for Stainless SteelsHSSP TiNTap material Surface treatment

TAP

482

Application of tapping speed

Processing Data

M6x1 GT6

20m/min 1,060rpm

13mm

Tap

Tap size

Work material

For TGN general mild steel

Carbon steel S50C

5.1mm, through hole

Tapping speed

Hole size

Thread length

Coolant

Machine

Non-water-soluble

Machining center

M12x1.75 GT8

15m/min 400rpm

24mm

Tap

Tap size

Work material

For TGN general mild steel

General structural steel SS400

10.3mm, through hole

Tapping speed

Hole size

Thread length

Coolant

Machine

Non-water-soluble

Machining center

M4x0.7 GT5

4.2m/min 335rpm

8mm

Tap

Tap size

Work material

3.3mm, through hole

Stainless steel SUS304

For TGN-SUS stainless steel

Tapping speed

Hole size

Thread length

Coolant

Machine

Non-water-soluble

NC drilling machine

Durability of M6×1 on S50C material (No. of internal threads tapped)

0

450

1 575

GN

TGN

0 500 1,000 1,500 2,000 2,500 3,000 3,500

790

3 000

GN of other make

GN of other make

TGN

0

324

540TGN-SUS

500 1,000 1,500 2,000

100 200 300 400 500 600

Durability of M12×1.75 on SS400 material (No. of internal threads tapped)

Durability of M4×0.7 on SUS304 material (No. of internal threads tapped)

Tapping speed (m/min)(m/minWork materials Tapping speed

Low-carbon steels

Medium-carbon steels

High-carbon steels

Alloy steels

Hardened steels

Stainless steels

Precipitation hardened stainless steels

Tool steels

Ductile casting

Copper

Brass, Brass casting

Bronze, Bronze casting

Aluminum

Aluminum alloy casting

10~30

7~15

5~15

5~15

5~10

10~20

10~20

10~20

10~20

10~20

15~25

10~20

10~30

10~20

Cutting TapT Spiral Pointed TapsHSSV HOMOTap material Surface treatment

TGN

TAP

483

Metric


×××××××××××××××××××××××××××××××××××××××

M1.4M1.7M2M2.3M2.5M2.6M3M3.5M4M5M6M6M7M8M8M9M10M10M10M12M12M12M14M14M16M16M18M18M20M20M22M22M24M24M24M25M26M27M27

0.30.350.40.40.450.450.50.60.70.810.7511.2511.251.51.2511.751.51.2521.521.52.51.52.51.52.51.5321.51.51.531.5

Cutting TapT Spiral Pointed TapsHSSV HOMOTap material Surface treatment

TGN

TAP

484

TGNMetric


××××××××××××××××××××××××××××××××××××××××××

M30M30M30M30M30M32M32M32M33M33M33M33M34M34M35M35M36M36M36M36M38M38M39M39M39M39M40M40M40M42M42M42M42M45M45M45M45M48M48M48M48M48

3.5321.51321.53.5321.521.521.54321.521.54321.5321.54.5321.54.5321.554321.5

Cutting TapT Spiral Pointed TapsHSSP HOMOTap material Surface treatment

TAP

485

Metric


×××××××××××××××××××××××××××××××××××××××××××××

M3M3M3M3M4M4M4M4M5M5M5M5M6M6M6M8M8M8M10M10M10M10M10M10M12M12M12M14M14M16M16M16M16M18M18M18M18M20M20M20M20M22M22M24M24

0.50.50.50.50.70.70.70.70.80.80.80.81111.251.251.251.51.51.51.251.251.251.751.51.2521.5221.51.52.51.51.51.52.52.51.51.52.51.531.5

Cutting TapT Spiral Pointed Taps, Long ShankHSSV HOMOTap material Surface treatment

LT-TGN

TAP

486

TGN-SUS

Metric


×××××××××××××××××××××××

M22.32.5M2.6M3M3.5M4M5M6M8M10M10M12M12M12M14M14M16M16M18M18M20M20

0.40.40.450.450.50.60.70.811.251.51.251.751.51.2521.521.52.51.52.51.5

Cutting TapT Spiral Pointed Taps, for Stainless SteelsHSSE HOMOTap material Surface treatment

TAP

487

Metric


×××××××××××××

M2M2.3M2.6M3M4M5M6M8M10M10M12M12M12

0.40.40.450.50.70.811.251.51.251.751.51.25

Cutting TapT Spiral Pointed Taps, for Over-sizedHSSV HOMOTap material Surface treatment

O-TGN

TAP

488

TiN-TGN

Metric

Processing Data

Tap

Tap size

Work material

Tapping speed

Hole size

Thread length

Coolant

Machine

Durability of M12 x 1.75 on SS400


×××××××××××××××××××××

M2.6M3M4M5M6M8M10M10M12M12M12M14M14M16M16M18M18M20M20M22M24

0.450.50.70.811.251.51.251.751.51.2521.521.52.51.52.51.52.53

Cutting TapTiN-Coating T Spiral Pointed TapsHSSP TiNTap material Surface treatment

TAP

489

Metric


××××××××××××××××××

M2M2M2.3M2.3M2.5M2.5M2.6M2.6M3M3M3.5M3.5M4M4M4M4M5M5

0.40.40.40.40.450.450.450.450.50.50.60.60.70.70.50.50.80.8

Tapping speed

Tapping speed (m/min) and cutting fluids

Work material Tapping speed Cutting fluids

Cutting TapTungsten Carbide Straight Fluted Taps

Tap material Treatment Carbide

TC-HT

TAP

490

HT-DC

Metric


××××××××××××××××××××××××××××××××××××××××××

M2M2M2.3M2.3M2.6M2.6M3M3M4M4M5M5M6M6M8M8M10M10M10M10M12M12M12M12M12M12M14M14M14M14M16M16M16M16M18M18M18M18M20M20M20M20

0.40.40.40.40.450.450.50.50.70.70.80.8111.251.251.51.51.251.251.751.751.51.51.251.25221.51.5221.51.52.52.51.51.52.52.51.51.5

Cutting TapStraight Fluted Taps, for Dia-castingHSSVTap material

TAP

491

Metric


××××××××××××××××××××××××××××××××××××

M3M3M4M4M5M5M6M6M8M8M10M10M10M10M12M12M12M12M12M12M14M14M14M14M16M16M16M16M18M18M18M18M20M20M20M20

0.50.50.70.70.80.8111.251.251.51.51.251.251.751.751.51.51.251.25221.51.5221.51.52.52.51.51.52.52.51.51.5

Cutting TapStraight Fluted Taps, for Cast IronHSSVTap material

HT-FC

TAP

492

P

LcNominal sizeItem No. Limit Type D L l Dn Lg K LkDimensions (mm) Flutes

1/161/81/43/81/2583/47/8

1/81/41/23/4

PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc) 1PT(Rc) 1PT(Rc) 1PT(Rc) 1PT(Rc) 1PT(Rc) 2

- 28- 28- 19- 19- 14- 14- 14- 14- 11- 11- 11- 11- 11- 11

　　

4

4

4

4

4

4

4

4

4

4

6

6

6

6

Taper Pipe Thread

Cutting TapTaper Pipe Thread TapsHSSVTap material

TAP

493

LcNominal sizeItem No. Limit Type Dimensions (mm) Flutes

1/161/161/81/81/41/43/83/81/21/25/85/83/43/47/87/8

1/81/81/41/41/21/23/43/4

PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc)PT(Rc) 1PT(Rc) 1PT(Rc) 1PT(Rc) 1PT(Rc) 1PT(Rc) 1PT(Rc) 1PT(Rc) 1PT(Rc) 1PT(Rc) 1PT(Rc) 2PT(Rc) 2

- 28- 28- 28- 28- 19- 19- 19- 19- 14- 14- 14- 14- 14- 14- 14- 14- 11- 11- 11- 11- 11- 11- 11- 11- 11- 11- 11- 11

　　　　

Parallel Pipe Thread

D L l Dn Lg K Lk

Cutting TapParallel Pipe Thread TapsHSSVTap material

P

TAP

494

Nominal size pitchMinor diaof internalthread100% 90% 80% 70%

Percentage of thread engagement hole diameter (mm)

M1

M1.1

M1.2

M1.4

M1.6

M1.7

M1.8

M2

M2.2

M2.3

M2.5

M2.6

M3

M3.5

M4

M4.5

M5

M5.5

M6

M7

M8

0.25

0.2

0.25

0.2

0.25

0.2

0.3

0.2

0.35

0.2

0.35

0.2

0.35

0.2

0.4

0.25

0.45

0.25

0.4

0.25

0.45

0.35

0.45

0.35

0.6

0.5

0.35

0.6

0.35

0.75

0.7

0.5

0.75

0.5

0.9

0.8

0.5

0.9

0.5

1

0.75

0.5

1

0.75

0.5

1.25

1

0.75

0.5

0.73

0.78

0.83

0.88

0.93

0.98

1.08

1.18

1.22

1.38

1.32

1.48

1.42

1.58

1.57

1.73

1.71

1.93

1.87

2.03

2.01

2.12

2.11

2.22

2.35

2.46

2.62

2.85

3.12

3.19

3.24

3.46

3.69

3.96

4.03

4.13

4.46

4.53

4.96

4.92

5.19

5.46

5.92

6.19

6.46

6.65

6.92

7.19

7.46

0.76

0.81

0.86

0.91

0.96

1.01

1.11

1.21

1.26

1.41

1.36

1.51

1.46

1.61

1.61

1.76

1.76

1.96

1.91

2.06

2.06

2.16

2.16

2.26

2.42

2.51

2.66

2.92

3.16

3.27

3.32

3.51

3.77

4.01

4.12

4.22

4.51

4.62

5.01

5.03

5.27

5.51

6.03

6.27

6.51

6.78

7.03

7.27

7.51

0.78

0.83

0.88

0.93

0.98

1.03

1.14

1.23

1.3

1.43

1.4

1.53

1.5

1.63

1.65

1.78

1.81

1.98

1.95

2.08

2.11

2.2

2.21

2.3

2.48

2.57

2.7

2.98

3.2

3.35

3.39

3.57

3.85

4.07

4.22

4.31

4.57

4.72

5.07

5.13

5.35

5.57

6.13

6.35

6.57

6.92

7.13

7.35

7.57

0.81

0.85

0.91

0.95

1.01

1.05

1.17

1.25

1.33

1.45

1.43

1.55

1.53

1.65

1.7

1.81

1.86

2.01

2

2.11

2.16

2.23

2.26

2.33

2.55

2.62

2.73

3.05

3.23

3.43

3.47

3.62

3.93

4.12

4.32

4.39

4.62

4.82

5.12

5.24

5.43

5.62

6.24

6.43

6.62

7.05

7.24

7.43

7.62

0.729~0.785

0.783~0.821

0.829~0.885

0.883~0.921

0.929~0.985

0.983~1.021

1.075~1.142

1.183~1.221

1.221~1.321

1.383~1.421

1.321~1.421

1.483~1.521

1.421~1.521

1.583~1.621

1.567~1.679

1.729~1.785

1.713~1.838

1.929~1.985

1.867~1.979

2.029~2.085

2.013~2.138

2.121~2.221

2.113~2.238

2.221~2.321

2.350~2.540

2.459~2.599

2.621~2.721

2.850~3.010

3.121~3.221

3.188~3.378

3.242~3.422

3.459~3.599

3.688~3.878

3.959~4.099

4.026~4.266

4.134~4.334

4.459~4.599

4.526~4.866

4.959~5.099

4.917~5.153

5.188~5.378

5.459~5.599

5.917~6.153

6.188~6.378

6.459~6.599

6.647~6.912

6.917~7.153

7.188~7.378

7.459~7.599



M9

M10

M11

M12

M14

M15

M16

M17

M18

M20

M22

M24

M25

M26

M27

1.25

1

0.75

0.5

1.5

1.25

1

0.75

0.5

1.5

1

0.75

1.75

1.5

1.25

1

2

1.5

1.25

1

1.5

1

2

1.5

1

1.5

1

2.5

2

1.5

1

2.5

2

1.5

1

2.5

2

1.5

1

3

2

1.5

1

2

1.5

1

1.5

3

2

7.65

7.92

8.19

8.46

8.38

8.65

8.92

9.19

9.46

9.38

9.92

10.19

10.11

10.38

10.65

10.92

11.8

12.38

12.65

12.92

13.38

13.92

13.8

14.38

14.92

15.38

15.92

15.3

15.8

16.38

16.92

17.3

17.8

18.38

18.92

19.3

19.8

20.38

20.92

20.8

21.8

22.38

22.92

22.8

23.38

23.92

24.38

23.8

24.8

7.78

8.03

8.27

8.51

8.54

8.78

9.03

9.27

9.51

9.54

10.03

10.27

10.3

10.54

10.78

11.03

12.1

12.54

12.78

13.03

13.54

14.03

14.1

14.54

15.03

15.54

16.03

15.6

16.1

16.54

17.03

17.6

18.1

18.54

19.03

19.6

20.1

20.54

21.03

21.1

22.1

22.54

23.03

23.1

23.54

24.03

24.54

24.1

25.1

7.92

8.13

8.35

8.57

8.7

8.92

9.13

9.35

9.57

9.7

10.13

10.35

10.48

10.7

10.92

11.13

12.3

12.7

12.92

13.13

13.7

14.13

14.3

14.7

15.13

15.7

16.13

15.8

16.3

16.7

17.13

17.8

18.3

18.7

19.13

19.8

20.3

20.7

21.13

21.4

22.3

22.7

23.13

23.3

23.7

24.13

24.7

24.4

25.3

8.05

8.24

8.43

8.62

8.86

9.05

9.24

9.43

9.62

9.86

10.24

10.43

10.67

10.86

11.05

11.24

12.5

12.86

13.05

13.24

13.86

14.24

14.5

14.86

15.24

15.86

16.24

16.1

16.5

16.86

17.24

18.1

18.5

18.86

19.24

20.1

20.5

20.86

21.24

21.7

22.5

22.86

23.24

23.5

23.86

24.24

24.86

24.7

25.5

7.647~7.912

7.917~8.153

8.188~8.378

8.459~8.599

8.376~8.676

8.647~8.912

8.917~9.153

9.188~9.378

9.459~9.599

9.376~9.676

9.917~10.153

10.188~10.378

10.106~10.441

10.376~10.676

10.647~10.912

10.917~11.153

11.835~12.210

12.376~12.676

12.647~12.912

12.917~13.153

13.376~13.612

13.917~14.153

13.835~14.210

14.376~14.676

14.917~15.153

15.376~15.676

15.917~16.153

15.294~15.744

15.835~16.210

16.376~16.676

16.917~17.153

17.294~17.744

17.835~18.210

18.376~18.676

18.917~19.153

19.294~19.744

19.835~20.210

20.376~20.676

20.917~21.153

20.752~21.252

21.835~22.210

22.376~22.676

22.917~23.153

22.835~23.210

23.376~23.676

23.917~24.153

24.376~24.676

23.752~24.252

24.835~25.210

Hole sizes for general application Metric threads

Cutting Tap

Hole sizes for general application Metric threads

TAP

495



M27

M28

M30

M32

M33

M35

M36

M38

M39

M40

M42

1.5

1

2

1.5

1

3.5

3

2

1.5

1

2

1.5

3.5

3

2

1.5

1.5

4

3

2

1.5

1.5

4

3

2

1.5

3

2

1.5

4.5

4

3

2

1.5

25.38

25.92

25.8

26.38

26.92

26.2

26.8

27.8

28.38

28.92

29.8

30.38

29.2

29.8

30.8

31.38

33.38

31.7

32.8

33.8

34.38

36.38

34.7

35.8

36.8

37.38

36.8

37.8

38.38

37.1

37.7

38.8

39.8

40.38

25.54

26.03

26.1

26.54

27.03

26.6

27.1

28.1

28.54

29.03

30.1

30.54

29.6

30.1

31.1

31.54

33.54

32.1

33.1

34.1

34.54

36.54

35.1

36.1

37.1

37.54

37.1

38.1

38.54

37.6

38.1

39.1

40.1

40.54

25.7

26.13

26.3

26.7

27.13

27.0

27.4

28.3

28.7

29.13

30.3

30.7

30.0

30.4

31.3

31.7

33.7

32.5

33.4

34.3

34.7

36.7

35.5

36.4

37.3

37.7

37.4

38.3

38.7

38.1

38.5

39.4

40.3

40.7

25.86

26.24

26.5

26.86

27.24

27.4

27.7

28.5

28.86

29.24

30.5

30.86

30.4

30.7

31.5

31.86

33.86

33.0

33.7

34.5

34.86

36.86

36.0

36.7

37.5

37.86

37.7

38.5

38.86

38.6

39.0

39.7

40.5

40.86

25.376~25.676

25.917~26.153

25.835~26.210

26.376~26.676

26.917~27.153

26.211~26.771

26.752~27.252

27.835~28.210

28.376~28.676

28.917~28.153

29.835~30.210

30.376~30.676

29.211~29.771

29.752~30.252

30.835~31.210

31.376~31.676

33.376~33.676

31.670~32.270

32.752~33.252

33.835~34.210

34.376~34.676

36.376~36.676

34.670~35.270

35.752~36.252

36.835~37.210

37.376~37.676

36.752~37.252

37.835~38.210

38.376~37.676

37.129~37.799

37.670~38.270

38.752~39.252

39.835~40.210

40.376~40.676

Hole sizes for general Metric threads

Cutting Tap

Hole sizes for general Metric threads

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