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Countersink Drill Bits (Set of 5)

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One bit that does it all. Drill, Counterbore and Countersink in a single operation.

Countersink Drill Bits are a high-quality solution when you need to drill, counterbore, and countersink a hole quickly and accurately.

Countersink Drill Bits perform all three operations with one bit, providing you with the same accuracy and power in a simple, fast, and easy-to-use package.

A quick change adapter is also included to help you to drill, counterbore, and countersink, and even drive fasteners even faster.


  • Drill, countersink, and counterbore holes in one step
  • Use for plugs and dowels
  • 1/4" hex shank
  • Can be used the power drills
  • Use with quick change chucks


    • Material: HSS Drill 4241 + Steel 45
    • Shank: 1/4 hex shank
    • Dimension:
      • 5# 1.98mm(0.07795 inch)x 50mm(L)
      • 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)
      • 5 x Countersink Drill Bits