Fangrui Product Details 1. Efficient Deburring: The 2pcs Screw Deburring Chamfer Cylindrical Chamfering Knife Is Designed To Quickly And Effectively Remove Burrs From Screws, Ensuring A Smooth Finish For All Your Repair Projects.cylindrical Chamfer [small 3-20mm], Cylindrical Chamfer [large 5-25mm] 2. Precision Chamfering: With The Cylindrical Chamfering Knife, You Can Achieve Precise Angles While Repairing Threads. This Tool Is For Any Diy Enthusiast Or Professional Looking To Enhance Their Screw Repair Skills. 3. Versatile Tool: The Screw Repairer Thread Trimming And Angle Bolt Repair Tool Is An Essential Addition To Every Toolbox, Making It Ideal For A Variety Of Applications Including Automotive, Woodworking, And Metalworking Tasks. 4. Construction: Made With High-quality Materials, The 2pcs Screw Deburring Chamfer Cylindrical Chamfering Knife Offers Long-lasting Performance And Reliability, Ensuring That You Can Tackle Multiple Repairs Without Worry. 5. User-friendly Design: The Ergonomic Design Of The Screw Repair