General description Set of 10 HSS-Co twist drill bits from BOSCH, designed for long-lasting performance when drilling stainless steel. These drill bits are made from a cobalt alloy and fully ground HSS, providing excellent wear resistance and heat protection. The two cutters and two flutes efficiently remove chips, enhancing the longevity of the bits. The cylindrical shank is compatible with three-jaw drill chucks. Technical specifications Diameter: Ø 7 mm Length: 109 mm