Step Drill Cone | HSS Titanium Coated | Hole Metal Cutter Set | 4-12mm, 4-20mm, 4-32mm

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About this item

  • 3 Piece Set
  • HSS Steel
  • Step Drill Step Cone Set
  • Titanium Coated
  • Used to cut holes in sheet metal
  • Ideal for drilling thin sheet metal without deformation
  • Titanium coated for longer life
  • The below speeds apply for drilling in steel
  • Always use cutting oil or paste, this increases the working life of the bits
  • Check the bit for signs of damage each time before use
  • Damaged or broken bits may not be used and must be replaced immediately
  • Always wear eye protection


Pieces Include:

  • The set contains:
Step drill size: Max. rpm:
4-12mm 1000-450 rpm
4-20mm 800-250 rpm
4-32mm 400-180 rpm


    • Increases the hardness and makes the bits last up to 4-5 times longer than ordinary drill bits Drill round holes in most metals, plastic, wood, and etc Self-starting tips will not skid, no need for centre punching or pilot drill Designed to auto deburr the hole cut Used on electric drills and drill presses Triangular shank will not spin inside the chuck Made by HSS with heat treatment and Titanium Nitride costing
    • Superior quality tool for jobs of all sizes Titanium coated to reduce friction and heat Heat treated and highly polished.
    • Ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic, thin iron, aluminum alloy, insulation boards, PVC sheet (thickness below 5MM), etc.
    • 3 sided shanks design in order to prevent slippage when in chuck Two flute design provides faster, smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps.
    • Titanium Nitride Coating for Cooler Running, can effectively extend the service life of the drill.
    • Automatically Deburrs Holes as you Drill. Two-flute Design Gives You Faster, Smoother Cutting.