Precision twist drills made of high-performance high-speed steel according to DIN 338. They are precision-ground, cylindrical, right-hand cutting, type N, with cross-grinding at 135° according to DIN 1412 C (from 3 mm), and have a diameter tolerance of h8. These drills are designed for the highest demands and precision in industry and trade.

They are suitable for drilling steels and cast steels, both alloyed and unalloyed, as well as grey cast iron, malleable cast iron, nodular cast iron, sintered iron, nickel silver, graphite, non-ferrous metals, and plastic, with a tensile strength of up to 900 N/mm².