Premium HSS Countersink Drill Bit Set (BUY 2 GET 10%OFF)

  • $29.99
  • Save $29.99
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  • 99.8% of Reviewers Recommends This Product.


  • In one step: you can drill, countersink and counterbore the perfect sized hole for #4, #6, #8, #10, or #12 screws.
  •  Premium HSS Countersink will drill the pilot hole and countersink or counter-bore for screws in one step. Countersink to drive the head of the screw flush with or slightly below the surface

    • Ideal for plugs or dowel buttons. The 1/4" hex shank can be used with power drills and quick-change chucks.
    • Experience the higher quality of Premium. Combining higher quality materials and patented technology, it delivers industrial quality tools to the markets at an affordable price.

    • Material: HSS Drill 4241
    • Chamfer Drill Body: Carbon Steel 45
    • Applicable to workpieces with hardness below 25HRC, such as carbon steel, thin iron plate, insulation board, PVC board, wood board, etc

      • 5#    1.98mm
      • 6#    2.38mm (0.0937 inch) x 55mm(L)
      • 8#    2.78mm (0.1094 inch) x 60mm(L)
      • 10#  3.175mm (0.125 inch) x 63mm(L)
      • 12#  3.56mm (0.14 inch) x 65mm(L)

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