10-45mm HSS Spiral Grooved Step Drill Bit Nitriding Black Groove Core Hole Cutter Bit


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  • Scop: thin iron plate, aluminum, insulation panels, PVC panels 4mm thickness within the timber
  • Titanium coated to reduce friction and run cooler
  • Automatically deburr holes as you drill
  • High speed steel,durable
  • Widely used to cut holes in a variety of material like steel, wood, thin iron, aluminum alloy, insulation boards, PVC sheet,ect

Color Black
Material High Speed Steel
Surface Nitrogen Treatment
Shank Triangle Round Handle
Type 10-45mm
Shank 25 x 12mm
Total Size 45 x 100mm

Package Includes
  • 1 x 10-45mm Spiral Grooved Drill