The BOHRCRAFT countersink, 90° with three cutting edges, is manufactured according to DIN335C standard. Made of HSS-E Co5 (cobalt alloyed high-speed steel), it offers excellent durability and wear resistance. Size: 31x71 mm, shank: S12. Provides precise countersinking and deburring for steel, stainless steel, cast iron, and non-ferrous metals.