Yato YT-44723 Countersink HSS Drill Bit is a must-have tool that is suitable for professionals or enthusiasts. It is made from high-quality high-speed steel (HSS) with a cylindrical handle (Shank). The working insert is made of high-quality high-speed steel (HSS). Drill bits come with a reinforced 5 split points and a point angle of 45 degrees for cutting. Perfectly built to perform precise drilling in stainless steel, structural steel and aluminium in industry and crafts. Drill bit diameter: 10 mm.