7pcs High-speed Steel Three-point Countersink Chamfer Tool Deburring Tool Set with Wrench for Drilling

Description Adopts titanizing craftwork greatly improves the deburring bit s corrosion resistance and oxidation resistance enhances its wear resistance high temperature resistance cutting property. High hardness smooth chip processing can once fulfill the chamfering deburring and cone processing. Features - Color: As shown. - Material: High-speed steel. - Size: 12 x 1.9 x 1.9 cm. - 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 - High hardness smooth chip processing can fulfill the chamfering deburring and cone processing. Used for workpiece circular aperture chamfering or cone hole - 7 pcs drill bits with various sizes : 3mm 4mm 5mm 6mm 7mm 8mm 10mm. - Idea for cutting through plastic aluminum copper stainless steel aluminum plate insulation boards and PVC sheet .