Franklin Performance Chassis Punches

Chassis punches, also known as screw punches or knockout punches, are used to easily punch holes in sheet metal. A smaller hole is pre-drilled into the material, then the chassis punch is used to enlarge it.

Made from high strength alloy steel with a heat treatment and unique oil impregnation to prevent corrosion — built to last a lifetime.

Sizes Available:

• 3/4" (19mm) – pre-drill size 10.5mm
• 1" (25.4mm) – pre-drill size 12.5mm
• 1.25" (31.8mm) – pre-drill size 12.5mm
• 1.5" (38.1mm) – pre-drill size 20.5mm
• 2" (50.8mm) – pre-drill size 20.5mm

Cutting Capacity:

• Aluminium, brass, copper: 4.0mm
• Mild steel: 3.0mm
• Stainless steel: 1.5mm