Drill Sizes for Tapping

Drill Sizes for Tapping

DRILL SIZES FOR TAPPING

(60⁰ Included Angle)

Metric Thread

Pitch (mm)

Drill Size (mm)

M1

0.25

0.75

M2

0.40

1.60

M3

0.50

2.50

M4

0.70

3.30

M5

0.80

4.20

M6

1.00

5.00

M8

1.25

6.80

M10

1.50

8.50

M12

1.75

10.20

M16

2.00

14.00

M20

2.50

17.50

M24

3.00

21

M30

3.50

26.50

 DRILL SIZES FOR TAPPING

(55⁰ Included Angle)

B.S.P.

Threads per inch

Drill Size (mm)

1/8

28

8.80

1/4

19

11.80

3/8

19

15.25

1/2

14

19

3/4

14

24.50

1

11

30.75

1 1/4”

11

39.50

1 1/2”

11

45

1 3/4”

11

51

2

11

57

 

 

What's Your Reaction?

like
1
dislike
0
love
0
funny
0
angry
0
sad
0
wow
0