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 is also perfect for users drilling steel trunking, cabinets, enclosures, panels and steel cladding, it is the ultimate time saving and hassle-free solution. Acceler8% can be used on mild steel, stainless steel and aluminium. · · · Impact driver shank · · Flared body depth stop · · 0.6mm slimline kerf · · HSS cutting edge with 8% cobalt · · 8 teeth per inch · · Internal ejection spring