Function and result: This deburring external chamfer tool removes burrs and chamfers from metal pipes, bolts, rods, and screws, leaving a smooth and polished surface while helping to prevent scratches and injuries from sharp edges. Versatile use: Suitable for both DIY enthusiasts and professionals, it smooths edges on a variety of materials including wood, metal, and more. Easy to use: Can be attached to any power drill or hand drill to quickly and smoothly remove burrs from metal, wood, and other materials. Polished finish: Produces a clean, polished edge by quickly and precisely removing burrs, improving appearance and workmanship. Key attributes: External deburring and chamfering function, compatible with most power drills and hand drills, designed for efficient, reliable performance. Use scenarios: Finishing cut ends on metal pipes and bolts in fabrication or plumbing projects. Deburring and chamfering screw ends or rod ends to ease assembly. Smoothing wood edges in woodworking or furniture making.