【Easy to Use】The external chamfering and deburring tool efficiently removes rough edges with minimal effort. Its safety-focused design prevents cuts, sparks, and burns, ensuring smooth application of nuts and fittings for a clean finish. Deburring Tool Set with 11-Piece of High Speed Steel Rotary Burr Removal Blades 1 Black Handle, Ideal for Edge Burr Removal on Metal Work, Copper, Brass, PVC Pipes, Resin Art, 3D Printing & More Effortlessly smooth out rough edges on freshly cut pipes, bolts, and more. Use lubricating oil with the hardened steel to enhance tool performance. OCGIG 4pcs Countersink Chamfer Tool HSS(4241) Deburring Tool Set Metal 4pcs Round Shank Deburring Chamfer Tool Countersink HSS 4241 Titanium Coated Incline Hole Chamfering Drill ; diameter (1). 6-12mm(0.24-0.47in) ; Key attributes 【Internal Deburring Tool】 M2 high-speed steel material with surface nitriding treatment. It can be used to drill holes in metals, including countersunk holes. NOTE: Avoid using in impact mode. External Chamfer Tool For Pipes And Bolts AMTOVL 4PCS Deburring External Chamfer Tool & Countersink Drill Bit Set Deburring Chamfer Tool Set 【Wide Application】Effectively used in Stainless Steel, Hardened Steel, Mild Steel, Copper, Brass, Aluminum.