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Straight Spring Burr-Bit Diagram

Standard Burr-Bit Diagram

Converts standard Burr-Bit to European
ISO Standards: DIN 371 and DIN 376 (See Fig. B)
Part Numbers and Dimensional data (metric)

Tap Size

Dimensions (mm)

DIN 371

DIN 376

B

C

D

S

PART#

S

PART#

M3

30.5

20.0

9.5

3.5

08030301

2.2

08030302

M4

30.5

20.0

9.5

4.5

08030401

2.8

08030402

M5

33.0

21.0

9.5

6.0

08030501

3.5

08030502

M6

39.5

25.5

13.0

6.0

08030601

4.5

08030602

M8

41.0

27.0

14.5

8.0

08030801

6.0

08030802

M10

43.0

25.0

16.6

10.0

08031001

7.0

08031002

M12

48.0

29.0

20.6

12.0

08031201

9.0

08031202

M14

50.5

32.0

25.4

11.0

08031402

M16

50.5

32.0

25.4

12.0

08031602

M18

55.5

32.0

28.5

14.0

08031802

M20

55.5

32.0

28.5

16.0

08032002

Converts Standard ANSI Burr-Bit
to JIS Standard (See Fig. A)

Tap Size

B (mm)

C (mm)

D (mm)

S (mm)

Part #

M3

23.0

16.5

9.5

4.0

08030304

M4

25.0

16.5

9.5

5.0

08030404

M5

26.0

16.5

9.5

5.5

08030504

M6

28.5

18.0

12.7

6.0

08030604

M8

33.0

19.0

8.0

6.2

08030804

M10

36.0

21.5

16.6

7.0

08031004

M12

43.5

24.0

20.6

8.5

08031204

M14

42.0

25.5

25.4

10.5

08031404

M16

47.5

28.5

25.4

12.5

08031604

M18

54.0

34.0

28.5

14.0

08031804