General description Sealey AK3715HSS HSS Drill Bit Set includes 15 titanium nitride coated high-speed steel drills, designed for durability and efficiency. This popular range of sizes makes it suitable for various drilling tasks. Technical specifications Set consists of 15 titanium nitride coated high-speed steel drills Sizes: Ø1.5 (x2), 2 (x2), 2.5 (x2), 3, 3.2, 3.5, 4, 4.5, 5, 6, 8, 10mm Model No. AK3715HSS Other information Supplied in a plastic storage box with rubberised, non-slip coating