Bosch 2607019925 HSS-CO RobustLine Twist Metal Drill Bit Set (10 Piece) The Bosch 2607019925 is a 10 piece Twist Drill Bit Set ranging from 1mm-10mm. These drill bits are designed to provide long-lasting performance when drilling stainless steel. They feature two cutters and two flutes which remove chips quickly and are constructed from Cobalt alloy and fully ground HSS for wear resistance and heat protection. Sold in a handy case for optimum protection and ease of identification of bit. Features: 10 piece metal drill bit set provides long-lasting performance when drilling stainless steel Cobalt alloy and fully ground HSS provides wear resistance and heat protection Two cutters and two flutes remove chips quickly to make the bits last even longer Manufactured to DIN 338, drill bit Type N (flute angle) with a 135-degree tip, diameter tolerance h8 Their cylindrical shank system is designed to be used with drill stands and drill drivers Contains:  1mm x 12mm 2mm x 24mm 3mm x 43mm 4mm x 52mm 5mm x 57mm 6mm x 59mm 7mm x 75mm 8mm x 81mm 9mm x 87mm 10mm x 43mm Specification: Pack Qty: 10 Piece