3 pcs 4241 HSS Imperial Step Drill Bit Set Hex Shank 3/16-1/2,1/4-3/4,1/8-1/2

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Product description

  • 6mm hex shank
  • Material High speed steel 4241 (suitable for use below 25 degree of hardness, such as carbon steel sheet, thin iron plate, insulation board, wooden board).

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