Marketing InformationMalco® sheet metal hole cutter quickly installs into the chuck of any corded or cordless drill as small as 1/4 in. The Distinctive Gold Bits, Bearings and Pivot Pin signify the longest lasting, fastest cutting and easiest adjusting solution for cutting holes in sheet metal. A Lightweight aluminum frame makes these accessories extremely portable for a variety of hole cutting applications in sheet metal, which includes 20 ga galvanized steel. The larger HC2 model cuts 2 to 20 in holes.