Four-tooth eccentric drill bit: Simultaneous drilling and tapping. 【Fast movement with this high-performance drill bit set. Cutting-edge drill bits designed for maximum efficiency, save time and effort on all your projects. 【Titanium Coating】Each drill bit is coated with a titanium film that improves its durability and heat resistance, ensuring optimal sharpness and efficiency even after prolonged use. 【Unique Thread Feature】Featuring With a unique cutting thread, this high-strength eccentric twist drill bit produces clean, smooth threads with precision, reducing the need for additional tools or steps. 【6 Sizes Available】High-hardness eccentric twist drill bit with angled head available in multiple sizes. Tackle all your jobs, big or small, with the right drill bit. 【Wide Compatibility】This drill bit set is compatible with a variety of materials such as metal, wood, and plastic, giving you optimal versatility for different applications.