Chip evacuation deserves a separate check alongside vibration. In deep cavities, retained chips may be cut again. A coarser-pitch cutter provides more space for chip evacuation.
| Check | Question to record |
|---|---|
| Exit path | Where can chips leave the pocket or slot? |
| Delivery system | Does the approved air or coolant arrangement reach the cutting zone? |
| Tool selection | Is chip space suitable for this engagement and material? |
Scratches alone do not prove chip recutting. After a safe stop, inspect retained chips and cutting edges, then review evacuation before changing speed. Record the observation and compare the next controlled trial under the same inspection conditions.