Abracs CS205 Countersink Drill Bit with Precision Split Point Abracs CS205 Countersink Bits are manufactured from high speed steel with a 90° cutting edge for ultimate performance. The precision ground flutes ensure that the three edged cutters are extremely sharp & durable. Suitable for Mild Steel, Sheet Metal, Steel and Stainless Steel. Features: Precision split point Extreme lifetime Pinpoint accuracy Specification: Part number: CS205 Diameter: 20.5mm (M10) Length: 63mm Shank: Straight