Fangrui Product Details High-performance Drill And Tap Combination: Experience The Convenience Of Drilling And Tapping Simultaneously With Our Advanced Drill Bit Set. Designed To Optimize Your Workflow, This Set Significantly Reduces The Time And Effort Required For Your Projects, Ensuring Efficiency And Precision In Every Task.(4/5/6/8/10/12) Titanium-coated Durability: Each Drill Bit In Our Set Is Enhanced With A Titanium Coating, Which Not Only Increases The Durability But Also Improves Heat Resistance. This Special Coating Ensures That The Bits Maintain Their Sharpness And Effectiveness, Even With Heavy And Extended Use. Precision Thread Cutting: Our Drill Bits A Unique Thread Cutting Design That Allows For The Creation Of Clean, Smooth Threads. This Precision Engineering Eliminates The Need For Additional Tools Or Steps, Streamlining Your Work Process And Enhancing Overall Productivity. Versatile Compatibility: Crafted To Be Compatible With A Diverse Range Of Materials, Including Metals, Woods, And Plastics, This D