Product information, , HSS steel, Drills 40% faster and requires 50% less feed force than conventionally ground HSS drills, Suitable for drilling holes in alloyed and unalloyed steel, cast steel, cast iron, sintered iron, ductile iron, non-ferrous metals, and hard plastics, Drill type N, Manufactured according to DIN 338, Diameter mm: 2.0, 3.0, 4.0, 5.0, 6.0, 8.0, 10.0, Working length mm: 24, 33, 43, 52, 57, 75, 87., Total length mm: 49, 61, 75, 86, 93, 117, 133