Dormer A510 HSS High Speed Steel Tin Coated ADX Jobber Drill Bit with 130 Degree Thinned Point, Diameter 4.2 mm, Single Pack

130 degree thinned point - Helps with self-centring and reduce the push force required Titanium Nitride coating - Increase service life of the drill, improved performance when drilling harder materials Convex Cutting Edges - Helps break chips easier to aid removal and allow increased cutting speed and feeds Premium HSS material - Can be used for drilling many materials including steels, aluminium, stainless steel High Performance Drill - Capable of producing high quality and accurate holes even at high speeds and feeds (H9 hole tolerance)