Ironworker Punch Sizes from American Machine Tools:
Standard sizes normally in stock.

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These Punch Sets are shipped with a matching die having 1/32" clearance unless you special order with a custom clearance at extra cost.
We normally recommend clearance hole sizes for common size bolts - such as 5/16 for 1/4 inch screw and 7/16 for 3/8 bolts and 9/16 for 1/2 bolts, etc.

STANDARD ROUND PUNCH & DIE SETS:
(Normally $28 per set) (8 of this type come with a new Ironworker)
1/8
5/32
3/16
7/32
1/4
9/32
5/16
11/32
3/8
13/32
7/16
15/32
1/2
17/32
9/16
19/32
5/8
21/32
11/16
23/32
3/4
25/32
13/16
27/32
7/8
29/32
15/16
31/32
1"
1-1/32
1-1/16
1-1/8* (special notched Punch Nut required at $50.)

OVERSIZE ROUND Punch Sizes:
@ $55 for Punch with Die or $28 for Punch only
1"
1-1/32
1-1/16
1-3/32
1-1/8
1-5/32
1-3/16
1-7/32
1-1/4
1-9/32
1-5/16
1-11/32
1-3/8
1-13/32
1-7/16
1-15/32
1-1/2
1-17/32
1-9/16
1-19/32

STANDARD SQUARE Punch Sizes:
@ $105 for Punch with Die or $53 for Punch only
1/4
5/16
11/32
3/8
13/32
7/16
15/32
1/2
17/32
9/16
19/32
5/8
21/32
11/16
23/32
11/16
23/32
3/4
25/32**
13/16**
**(Special Notched Coupling Nut Required at $50)

STANDARD OBLONG SLOT Punches:
@ $120 for Punch with Die or $60 for Punch only
1/4 x 1/2
9/32 x 9/16
3/16 x 3/4
1/4 x 3/4
5/16 x 3/4
7/16 x 3/4
9/16 x 3/4
3/8 x 3/4
1/2 x 3/4
13/32 x 13/16
3/16 x 1
1/4 x 1
9/32 x 1
5/16 x 1
11/32 x 1
3/8 x 1
13/32 x 1
7/16 x 1
1/2 x 1
17/32 x 1
9/16 x 1
5/8 x 1
11/16 x 1
3/4 x 1
13/16 x 1
5/16 x 1-1/16
3/8 x 1-1/16
9/16 x 1-1/16
11/16 x 1-1/16
13/16 x 1-1/16

METRIC ROUND Punch Sizes
@ $55 for Punch with Die or $28 for Punch only
4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm 16.5mm 17mm 18mm 19mm 20mm 20.5mm 21mm 21.5mm 22mm 23mm 24mm 24.5mm 25mm 26mm

STANDARD HEX Punch Sizes
@ $178 for Punch with Die or $90 for Punch only
3/8, 7/16, 15/32, 1/2, 17/32, 9/16, 19/32, 5/8, 11/16, 23/32, 3/4, 25/32.

Want to know how to keep your punches sharp longer? Spray oil on the spot before you punch the hole. This will slow down how fast the punch gets dull which is even more important when punching holes in stainless steel or 2024-T6, 7075-T3 aluminum. Normally the punches will get dull twice as fast as the die, which is why you should buy twice as many punches as dies when you are planning a big hole punching job.

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