Greenlee Slug-Buster 7235BB Manual Knockout Punch Die Kit, 10 ga Capacity, For Use With Battery Powered, Hydraulic Ratchet Driver and Greenlee KRW-1 High Leverage Ratchet Wrench, 1/2 to 1-1/4 in Conduit/Pipe, Mild
For punching holes in mild steel, aluminum, brass, copper, fiberglass and plastics