Adopts titanizing craftwork, greatly improves the deburring bit’s corrosion resistance and resistance, enhances its wear resistance, high temperature resistance, cutting property. High hardness, smooth chip processing, can once fulfill the chamfering, deburring, and cone processing. It is a professional chamfering tool for batch processing, used for chamfering round holes and edges. Feature - Color: As shown - Material: High-speed steel. - Size: 5x2x2cm - Made of cobalt steel material, high hardness, rustproof, solid and durable - The chamfering with a groove, easier to discharge debris and the High Carbon Steel Drill Bit not easy to blunt - High hardness, smooth chip processing, can fulfill the chamfering, deburring, and cone processing. Used for workpiece circular aperture chamfering or cone hole - 6 Pcs drill bits with various sizes : 6mm, 10mm, 13mm, 16mm, 19mm - Idea for cutting through plastic, aluminum, copper, stainless steel, aluminum plate, insulation boards, and PVC sheet, . Package list: 6 x deburring bit