Made from high-speed steel (4241) with a hardness of 62°HRc (+/-2°). Head angle of 118°, straight grinding without release, suitable for manual beech. Diameter tolerance h8. Right-hand drill with type N spiral, thermally treated on rolling shafts, with high flexibility and torsional strength, grinding of cutting edges. Cylindrical shank corresponding to the diameter of the drill. Diameter: 8.0, Length: 240mm.