These M35 high speed steel drill bits are manufactured with 5% cobalt for long-lasting performance, abrasion resistance and heat protection. Fully ground with a 135° split point for precise centring to prevent drill wander. For optimal results and a longer lifetime, Draper cobalt drill bits work best in conjunction with a cooling agent. Suitable for use with alloy steel, titanium alloys, stainless steel, hardened steel, cast iron and carbon steel. Compatible with a standard 10/13mm chuck. Sizes 1.0-13.0. Supplied inside a plastic case.Manufactured to DIN338 and DIN1414-2Features & Benefits:• M35 high speed steel with 5% cobalt for long-lasting performance, abrasion resistance and heat protection• Fully ground with a 135° split point for precise centring• For optimal results use in conjunction with a cooling agent• Suitable for use with alloy steel, titanium alloys, stainless steel, hardened steel, cast iron and carbon steel• Compatible with a standard 10/13mm chuck• Sizes 1.0-13.0• Sup