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Typical Die Clearance for Punching Mild Steel


Using the correct die clearance for your punching operation is of critical important. Below are some typical die clearance measurements, as well as required tonnages for punching mild steel.

Applying the wrong clearance can result in ruined product, damaged machinery and worse. Make sure you have the correct punch, clearance and tonnage for the job at hand.

Backed by years of experience in the industry, American Punch Company can help you resolve your most difficult die and punch challenges. Call 1.800.243.1492 or submit this simple form to discuss your punch and die needs with our knowledgeable sales staff.


PUNCH
SIZE

  MATERIAL THICKNESS

1/8

1/4

3/8

1/2

5/8

3/4

3/16

13/64

1/4

17/64

5/16

21/64

11/32

3/8

25/64

13/32

7/16

29/64

15/32

15/32

1/2

33/64

17/32

17/32

9/16

37/64

19/32

19/32

5/8

5/8

41/64

21/32

21/32 

11/16

11/16

45/64

23/32

23/32

3/4

3/4

3/4

49/64

25/32

25/32

13/16

3/4

13/16

53/64

27/32

27/32

7/8

7/8

29/32

7/8

57/64

29/32

29/32

15/16

15/16

31/32

15/16

61/64

31/32

31/32

1

1

1-1/32

1

1-1/64

1-1/32

1-1/32

1-1/16

1-1/16

1-3/32

1-1/16

1-5/64

1-3/32

1-3/32

1-1/8

1-1/8

1-5/32

1-1/8

1-9/64

1-5/32

1-5/32

1-3/16

1-3/16

1-7/32

1-3/16

1-13/64

1-7/32

1-7/32

1-1/4

1-1/4

1-9/32

1-1/4

1-17/64

1-9/32

1-9/32

1-5/16

1-5/16

1-11/32

1-5/16

1-21/64

1-11/32

1-11/132

1-3/8

1-3/8

1-13/32

1-3/8

1-25/64

1-13/32

1-13/32

1-7/16

1-7/16

1-15/32

1-7/16

1-29/64

1-15/32

1-15/32

1-1/2

1-1/2

1-17/32

1-1/2

1-33/64

1-17/32

1-17/32

1-9/16

1-9/16

1-19/32



 

Required Tonnage for Punching Mild Steel With Tensile Strength of 50,000 PSI


MATERIAL
THICKNESS

  PUNCH SIZE

3/16

1/4

5/16

3/8

7/16

1/2

9/16

5/8

11/16

3/4

13/16

7/8

15/16

1

1-1/8

1-1/4

3/16

.187

3

4

5

6

7

8

9

9

10

11

12

13

14

15

17

19

1/4

.250

 

5

6

8

9

10

11

13

14

15

16

18

19

20

23

25

3/8

.375

 

 

11

13

15

17

19

21

23

24

26

28

30

33

38

1/2

.500

 

 

20

23

25

28

30

33

35

38

40

45

50

5/8

.625

 

 

 

31

34

38

41

44

B

50

56

63

3/4

.750

 

 

 

45

49

53

56

60

68

75

7/8

.875

 

 

 

 

61

66

70

78

88

1

1.000

 

 

 

 

80

90

100