Why an End Mill Chatters

End mill chatter is influenced by rigidity, overhang, flute count, radial engagement and cutting conditions.

End Mills: selection checklist

  • Shorten tool overhang and improve workholding.
  • Choose flute count and geometry for the material.
  • Reduce engagement or adjust speed within guidance.

How to choose the right option

  1. Stop and inspect the tool, workpiece and machine interface.
  2. Correct the size, geometry, setup or cutting condition involved.
  3. Run a controlled test and inspect the result before returning to production.

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For production quantities, unusual sizes or help selecting the correct tool, request a quote from Cutting Tools Outlet.

End-millsIndustrial cutting toolsTroubleshooting