Made of HSS-E (High Speed Steel, contains approximately 5% to 8% cobalt), Red'X coating, with cylindrical shank, Shaft tolerance h7, Nominal size Ø 3 - 20 mm, Tip angle 142° Main application: Steel (ISO-P), Main application: Stainless steel (ISO M), Main application: Cast materials (ISO K), Secondary application: Non-ferrous metals (ISO N), Main application: Superalloys (ISO S), Secondary application: Hardened steel (ISO H), Secondary application: Plastics and other materials (ISO O), For NC spot drilling