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
|