Stainless steel, mild steel, aluminum, copper, brass, fiberglass, plastics Strong, durable one-piece construction for even longer life 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
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