Stainless steel, mild steel, aluminum, copper, brass, fiberglass and plastics Strong, durable one-piece construction for even longer life Split-Point Cobalt Steel Pilot Drill with step design โ for fast, accurate cutting with less force Tungsten Carbide Teeth โ optimized design for fast, easy cutting and maximum life in stainless steel โ no oil required Flange Stop โ eliminates over-drilling Slug Ejector Spring โ quick, easy slug removal Cuts round, burr-free holes To view more info on the Greenlee site Click Here
Material : Cobalt Steel Type : Pilot drill bit Bit Diameter : 1/4 IN Application : Use with Greenlee carbide hole cutters 625-3/4 and 625-2. Split-point tip design eliminates need for center punch and resists walking.