Drill made of high-speed steel (4241) with a hardness of 62°HRc (+/-2°). It features a cutting angle of 118°, straight grinding without cutting correction, suitable for manual sharpening. Tolerance perimeter h8. Right-hand drill with N-type spiral, heat-treated in forging rolls, offering high flexibility and torsion resistance, sharpened cutting edges. Cylindrical shank matching the diameter of the drill. The drill surface is coated with an oxide layer, providing a low friction coefficient, reducing the risk of chip adhesion to the drill, and increasing drilling efficiency. Designed for general applications, for machining alloys and carbon steels with hardness up to 250Bhn, gray cast iron, non-ferrous metals, and hardened plastics. Complies with DIN-338 standard. Use of coolant is recommended. Diameter: 3.0mm. EAN: 5900171530304