Designed for versatility, the Dormer A022 HSS TiN Coated Spiral Drill Bit features an 8.9mm diameter and Type N profile, making it ideal for a range of materials. This set of 10 bits is made from high-speed steel for exceptional durability, while the titanium nitride coating enhances cutting efficiency and reduces friction. With a 135-degree point angle, these bits ensure accurate drilling and effective chip removal, making them a must-have for both professionals and DIY enthusiasts aiming for p