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.