Drilling and Countersinking Fastener Holes

Drill/Countersink Holder

Features:

  • Precision ground from hardened D-2 tool steel.
  • Concentricity of .0003 TIR.
  • Qualified location of insert pocket allows for interchangeability of inserts while maintaining the countersink diameter within .0005.
  • Custom shank configurations available.
Countersink Inserts

Features:

  • Fabricated from tungsten carbide.
  • Qualified for interchangeability.
  • Blended radius at the intersection of the drilled hole and the countersink to comply with fastener radius requirements.