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These high speed steel drill bits have three cutting points, which are self-centring and enable much faster drilling. Manufactured with a titanium and black coating for a long service life. Fully ground with a 135° split point to prevent drill wander. Fitted with a triangular flattened shank, which prevents the drill bit from slipping in the chuck. Draper Titanium Series drill bits work best in conjunction with a cooling agent. Suitable for use with steel, non-ferrous metals, wood and hard plastic. Perfect for flat and contoured surfaces. Compatible with a standard 10/13mm chuck. Sizes 1.5-10.0mm. Supplied inside a plastic case. 15 x HSS Turbo Titanium Cobalt Drill Bits - 1.5 (x2) 2.0 (x2) 2.5 (x2) 3.0 3.2 3.5 4.0 4.5 5.0 6.0 8.0 10.0mm