18 mm HSS G metal drill twist drill bit for steel. Spiral drill bit made of high-performance high-speed steel according to DIN 338; right-hand cutting twist drill type N, drill bit 118°, cross cut according to DIN 1412C, diameter tolerance h 8; fully ground, less friction during work. For alloy and non-alloy steel cast steel, grey cast iron, sintered iron, malleable cast iron, non-ferrous metals up to a tensile strength of 800 N/mm²