Attributes . Switch quickly between cutter sizes without re-chucking, with a simple push and turn connection. Split-Point Cobalt Steel Pilot Drill with step design ? for fast, accurate cutting with less force. Tungsten Carbide Teeth ? optimized design for fast, easy cutting and maximum life in stainless steel ? no oil required. Flange Stop ? eliminates over-drilling. Slug Ejector Spring ? quick, easy slug removal Cuts round, burr-free holes . Names