Precision spiral drill bit made of high-grade high-speed steel according to DIN 340, ground from the solid, long, cylindrical, right-hand cutting, type N, crosswise grinding 135° according to DIN 1412 C (from 3 mm), diameter tolerance h8, Bare surface, For highest demands and precision in industry and handcraft, For drilling steels, cast steel, alloyed and unalloyed, grey cast iron, ductile cast iron, sintered iron, nickel silver, graphite. Up to 900 N/mm² tensile strength.
Precision spiral drill bit made of high-grade high-speed steel according to DIN 340, ground from the solid, long, cylindrical, right-hand cutting, type N, crosswise grinding 135° according to DIN 1412 C (from 3 mm), diameter tolerance h8 Bare surface For highest demands and precision in industry and handcraft For drilling steels, cast steel, alloyed and unalloyed, grey cast iron, ductile cast iron, sintered iron, nickel silver, graphite. Up to 900 N/mm² tensile strength.