Electrical Conduit Knockout Punch Set

Punch round holes in sheet steel, copper aluminum, brass and some types of plastic with this knockout punch kit. Ideal for electrical pipe or conduit.

• Easy to use drive-bolt design uses several turns of a wrench to apply pressure
• Forged, machined and heat treated
• High carbon steel construction
• Sizes: 1/2 in., 3/4 in., 1 in. and 1-1/4 in.