Twist drill HSS - Maykestag DIN 340 RN 1.5 x 70 mm. Long version with cross section A-C, right-hand cutting, and cylindrical shank. This precision-ground twist drill is of industrial quality, designed for drilling alloyed and unalloyed steels, grey cast iron, malleable cast iron, copper alloy, nickel silver, graphite, and sintered iron. Its wide flutes and reinforced core allow for a drilling depth almost corresponding to the length of the twist and facilitate good chip removal. The point angle is 118°, and the surface is blued from 1.0 mm. All dimensions from 4.0 mm feature special grinding "AC." This industrial quality drill is suitable for NC machines, offering precision due to a modern grinding process and breakage resistance from CNC-controlled heat treatment.