Designed specifically for drilling sheet steel, This Acceler8% is built for speed. Perfect for users drilling steel trunking, cabinets, enclosures, panels and steel cladding, it is the ultimate time saving and hassle-free solution. With drilling speeds of 3.4 seconds and 37% faster than a standard hole saw, Acceler8% is the fastest way to drill sheet steel. It includes 1 x 20/25/32mm hole saw, 1 x drive pilot, 1 x spring and 1 x 2.5mm Allen key. · · · Impact driver shank for use within impact drivers · · Flared body depth stop · · 0.6mm slimline kerf · · HSS cutting edge with 8% cobalt · · 8 teeth per inch · · Internal ejection spring automatically ejects the metal disc · · Can be used in mild steel, stainless steel, and aluminium