American Punch Quote Request   
 

Typical Die Clearance for Punching Mild Steel


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