Trepanning MachiningTrepanning is a drilling process that leaves a core. Trepanning is a deep hole drilling process that has broad application over many industries. In many cases, trepanning is meant to be a roughing operation to be honed for finish, or machined further. In other cases, the trepanned hole is fit for use ‘as-drilled’.

The common factors for choosing trepanning are a long design, through bore, and within size ranges of 4.1″ to 15.75″.

Trepanning can be utilized in:

  • Machinery and Heavy Equipment
  • Manufacturing and Rebuild
  • Oil and Gas
  • Aerospace and Defense
  • Metals Production and Distribution
  • Forging

Can be utilized when holes may be required in:

  • Finished Parts for Weight Reduction
  • Clearance
  • Fluid Flow
  • Working Cavities
  • Machining Blanks
  • Piston and Cylinder Features
  • Seals

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