TEMCo TH0037 4" HYDRAULIC KNOCKOUT PUNCH Electrical Conduit Hole Cutter Set KO Tool Kit 5 Year Warranty Compatible with GREENLEE and other domestic punch tooling - 3/4-16 & 3/8-23. 13 US TRUE TON punching capacity. 10 Die Sets for conduit fitting size: , , 1, 1, 1 , 2", 2 ",3", 3 ", 4" Punching Thickness Capacity: 1/8 inch (11 ga) Steel Punching Capacity, 1/16 inch Stainless Steel. Punches: Steel, Stainless Steel, Brass, Copper, Aluminum (soft alloys only), Fiberglass, Plastic 5 Year Warranty from a well-known American name. NON-GENERIC