CNC Collet Maintenance
Collet Cleaning Guide A dirty collet causes 'Runout' (wobble), which breaks small bits and leaves poor finishes. Clean: Use a brass brush and IPA to remove dust from the slits. Inspect: Look for 'scoring' (circles) inside. This means a bit slipped. Replace: Collets are wear items. Replace them once a year if you use your machine heavily.
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