Twist drill made of high-performance high-speed steel, ground from solid, long, special spiral shape for optimum chip removal when drilling deep holes and with lubricating materials, cross-ground to DIN 1412C, 135° point angle, diameter tolerance h8, for the highest demands in industry and trade, for drilling steels and cast steel, alloyed and unalloyed, up to 900 Nmm², gray cast iron, malleable cast iron, ductile cast iron, sintered iron, nickel silver, graphite, etc.