6 Pcs Cobalt Steel Single-End Countersink Chamfer Tool Deburring Tool Set Round Shank for Cutting Holes in Plastic Copper Aluminum Plate Insulation Boards PVC Sheet

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Product description

  • countersink bit for metal with various sizes 6.3mm, 8.3mm, 10.4mm, 12.4mm, 16.5mm, 20.5mm countersink for steel.
  • The countersink set 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. for workpiece circular aperture chamfering or cone hole;
  • cobalt countersink is idea for cutting through, aluminum, copper, stainless steel, aluminum plate, insulation boards, and PVC sheet,.;

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