Unsatisfactory surface finish
BACK
| Possible causes |
| No/insufficient lubrication. Cutting edge build-up. |
| Tool damaged, i. e. broken cutting edge |
| Material has a tendancy to cause build up on cutting edges. |
| Surface finish of pre-drilled hole unsatisfactory |
| Concentricity bevel lead incorrect |
| Chip evacuation restricted |
| Cutting speed too low |