HSS Step Cone Drill Bit - 4-42mm 14 Sizes Round Shank Hole Cutter Tool High Speed Steel

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  • Surface Treatment Treated by Nitrogen to increase the hardness and abrasion resistance.
  • Deburring Function Automatically deburr holes as you drill.
  • Application Scope thin iron plate, aluminum, insulation panels, PVC panels 4mm thickness within the timber.
  • Step Type 14 sizes, 4-42mm(4, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42mm)

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