Tool Wear/Chipping | - Incorrect feed rate
- Incorrect speed
- Poor hole condition
- Abrasive Material
- Poor Chip evacuation
- Poor Coolant
- Insufficient Coolant
- Workpiece alignment
- Excessive Stock removal
| - Increase feed rate (typically)
- Reduce speed (typically)
- Work-hardened hole;Change drilling type
- Use proper coolant,coated reamer
- Use/increase coolant, use helical reamer
- Replace coolant or correct mixture
- Increase coolant volume
- use bushing,floating holder,lead chamfer
- Use large diameter starter drill
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