Champion Cutting Tool SMC-1 Sheet Metal Cutter 1/2-Inch Depth of Cut 1/2-20 Thread High Speed Steel Surface Treated Produces Fast, Bur-Free holes Applications include Sheet Metal, Plate Materials and Plastics up to 1/2" Thick. Ideal for Electrical/Conduit, Automotive Frame and Bodywork, PDR (Paintless Dent Repair) and HVAC