| Possible causes |
| Significant reduction in tool life, crumbling on cutting lips, edge build-up or conglutination of flutes through insufficient chip evacuation |
| Solution |
| select milling cutters with internal cooling |
| Alternative |
| peripheral cooling via GM 300 chuck |
| increase volume flow |
| adjust coolant flow |
| apply compressed air cooling (according to tool an material) |
| reduce feed rate |
| modify cutting distribution |