Twist drill HSS - Maykestag DIN1869 RN 5.5x205 mm.

This precision-ground twist drill is designed for industrial quality drilling of alloyed and unalloyed steels, grey cast iron, malleable cast iron, copper alloy, nickel silver, graphite, and sintered iron. Key features include special lengths, right-hand cutting, a cylindrical shank, wide flutes, and a reinforced core, allowing for a drilling depth nearly equal to the length of the twist and efficient chip removal. The point angle is 118°, and the surface is blued from 1.0 mm, with all dimensions starting from 4.0 mm featuring special grinding "AC." This drill is suitable for NC machines, offering precision due to a modern grinding process and breakage resistance from CNC-controlled heat treatment.