General description This set of three cone drill bits is constructed from high-quality HSS steel and features a titanium coating to reduce friction and heat. It allows you to achieve the desired drilling diameter without the need to change drill bits multiple times, making it ideal for processing holes of various diameters in a single operation. Technical specifications Material: Titanium Coated 4241 (HSS) High Speed Steel Set includes: 3 cone drill bits with sizes 4-12, 4-20, and 4-32 Usage This drill bit set is suitable for a wide range of materials, including: Metals Aluminum Wood Plastics Copper Brass PVC