ZVH1263 Features: * Washer and gasket cutter * Tool cuts washers and gaskets in leather, rubber, cork, graphite, fiber, copper and other soft materials * Combination round and square shank permits use with bit brace or hand drill * Made of steel with graduated beam to adjust to diameters from 0.63"" to 6.5"" * Replaceable tool steel cutter blades no. 11B * Two independently adjustable cutter blades cut inside and outside diameters simultaneously * Maximum safe speed is 100 RPM * For hand held variable speed drills only