STANDARD ROUND KNOCKOUT PUNCHES
Type B
Capacity: Mild steel up through 3.5mm (10gauge)
Application: Punch mild steel, aluminium, fiberglass and plastic.
Operation: Battery, hydraulic, ratchet or manual drivers. When used with ratchet, hydraulic or battery drivers, buy the punch and die only; the draw stud is part of the driver kit.
| CONDUIT&PIPE SIZE | HOLE SIZE (ACTUAL) | CAPACITY | DRAW STUD WITH BEAING | |||
| Φ(INCH) | Φmm | mm | GA | |||
| 1/2" | 7-8 | 0.885 | 22.5 | 3.5 | 10 | 3/8", 24UN |
| 3/4" | - | 1.115 | 28.3 | 3.5 | 10 | 3/4", 16UN |
| 1" | - | 1.362 | 34.6 | 3.5 | 10 | 3/4", 16UN |
| 1-1/4" | - | 1.701 | 43.2 | 3.5 | 10 | 3/4", 16UN |
| 1-1/2" | 1-15/16 | 1.951 | 49.6 | 3.5 | 10 | 3/4", 16UN |
| 2" | 2-3/8 | 2.416 | 61.5 | 3.5 | 10 | 3/4", 16UN |
| 2-1/2" | 2-7/8 | 2.914 | 74.0 | 3.5 | 10 | 3/4", 16UN |
| 3" | 3-1/2 | 3.539 | 89.9 | 3.5 | 10 | 3/4", 16UN |
| 3-1/2" | 4 | 4.044 | 102.7 | 3.5 | 10 | 3/4", 16UN |
| 4" | 4-1/2 | 4.544 | 115.4 | 3.5 | 10 | 3/4", 16UN |
| 5" | 5-5/8 | 5.675 | 144.1 | 3.5 | 10 | 3/4", 16UN |
| 6" | 6-3/8 | 6.375 | 161.9 | 3.5 | 10 | 3/4", 16UN |
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