Designed specifically for drilling sheet steel, built for speed. Impact-rated shank for use with impact drivers. Flared body depth stop for improved safety and easy tool removal. HSS cutting edge with 8% cobalt for extra durability. 0.6mm slim kerf for reduced resistance and rapid drilling. Internal ejection spring automatically ejects the metal disc for hassle-free drilling. Ideal for drilling steel trunking, cabinets, enclosures, panels and cladding.