Heule Precision Tools DEFA

The DEFA chamfering tool was designed to offer controlled chamfers over a range of adjustments. DEFA chamfers the front and back of through holes without reversing the spindle or indexing the work piece.

DEFA offers the user a high quality chamfering tool with TiN coated solid carbide cutting blades, while double blades create pre-adjusted front and back chamfers in a single pass without stopping or reversing the spindle.


Additional Information


  • Sliding surface blade geometry prevents damage to finish hole surfaces
  • Exact chamfer diameters can be set without trial and error
  • Repeatable chamfers regardless of burrs or material
  • Available in sizes from 4 mm to 44.5 mm (0.156″-1.750″)