Milling Machine Operator how-to

How to Find an Edge with an Edge Finder

Edges set your zero.

Updated By the Career Education Institute Curriculum Team
Quick answer

Edges set your zero. In short: chuck; spin; approach, then complete the remaining steps below.

Step by step

  1. Chuck the edge finder.

  2. Spin at low RPM.

  3. Approach the edge.

  4. Watch it kick.

  5. Add half the diameter.

  6. Zero the DRO.

Safety reminders for milling machine operators

  • Wear eye protection
  • No gloves near cutters
  • Secure parts
  • Stop the spindle before measuring

End mill · Tramming · Edge finder · Climb milling · Conventional milling · DRO: see the full milling machine operator glossary.

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