Annular Cutters - Achieve Burr-Free Finished Holes Without Predrilling or Stepdrilling

Achieve burr-free finished holes, without predrilling or stepdrilling – Faster and more accurate than twist drilling!

Benefits of the CS Unitec Cutter Design:

Precision-ground flutes provide efficient chip clearance, increasing drilling productivity and decreasing cutter breakage.

Double-action tooth geometry cuts, splits and ejects chips more efficiently,

  • increasing cutting speed
  • reducing tooth load
  • minimizing tool wear
  • lengthening cutter life

Engineered with a tapered inner wall for smooth, easy slug ejection.

Center hole for pilot pin accurately aligns the cutter, allows for internal lubrication and removes the slug.

Perfect drilling to close tolerances without runout. The result: a burr-free finished hole.

Your Choice of Unibroach® Cutter Materials:


Pilot Pins: How they work...

  1. Centering: The Pilot pin accurately centers cutter over area to be drilled.
  2. Oiling: During drilling, the pilot pin retracts and allows internal coolant to reach the cutting teeth.
  3. Ejecting: When hole is complete, the slug is automatically ejected from the cutter.