HSSE M35 Cobalt Drill Bit 1.0mm x 34mm 2 Pcs - Draper Expert 08964, 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 1.0-10.0.Supplied inside a plastic case. Draper Expert 08964 HSSE M35 Cobalt Drill Bit Set (19 Piece)