Additional information
| Size | 12.7mm, 16mm, 19mm, 20mm, 22mm, 22.5mm, 25mm, 25.4mm, 28.3mm, 30mm, 32mm, 32.5mm, 35mm, 38mm, 40mm, 45mm, 48mm, 50mm, 51mm |
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BORDO Chrome Alloy Screw (Chassis) Punch
- A screw punch, also known as a chassis punch or a knockout punch, is used to punch a hole through sheet metal.
- First drill a pilot hole in the sheet metal the same size as the bolt in the punch.
- For sizes 13mm and under a Twist drill may be used.
- For larger sizes use a Bordo step drill.
- Place the die on to the bolt and then insert this assembly through the pilot hole.
- Wind the punch onto the bolt and tighten by hand until firm.
- Turn hex head of bolt with a socket, spanner or wrench until the punch is drawn completely through the sheet metal.
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