| Trouble | Why? | What to do |
| too much flank wear | * Too fast cutting speed | * Slower the cutting speed |
| * Too slow feed | * Feed up | |
| * Wrong insert grade | * More wear resistant grade | |
| * Wrong angles | * Larger clearance angle | |
| * Vibration | * Check the machine, clamp, and cutter | |
| Too much rake wear | * Too slow cutting speed | * Slower the cutting speed |
| * Too fast feed | * Lower the feed | |
| * Wrong insert grade | * More wear resistant grade | |
| * Wrong angles | * Larger rake angle | |
| Thermal crack | * Too fast cutting speed | * Lower the cutting speed |
| * Too much depth of cut | * Lower the depth of cut | |
| * Too fast feed | * Lower the feed | |
| * Too large diameter | * Smaller diameter | |
| * Wrong insert grade | * more heat resistant grade | |
| * Coolant | * Dry cut | |
| Welding | * Too slow cutting speed | * Faster cutting speed |
| * Too slow feed | * More feed | |
| * Wrong angles | * Larger rake angle | |
| * Wrong insert grade | * Better insert grade | |
| Chipping | * Thermal crack | * Slower the cutting speed |
| * Welding | * Faster cutting speed | |
| * Too fast feed | * Lower the feed | |
| * Wrong angles | * Smaller angles | |
| * Wrong insert grade | * More stiff grade | |
| * Vibration | * Check the machine, clamp, and cutter | |
| Breakage | * Chipping | * Things for chipping |
| * Weak Machine or clamp | * Stronger machine and clamp | |
| * Chip jam | * Larger chip room | |
| Chattering | * Too fast cutting speed | * Slower the cutting speed |
| * Too fast feed | * Lower the feed | |
| * Too much depth of cut | * Smaller depth of cut | |
| * Too many teeth | * Fewer teeth | |
| * Chip jam | * Larger chip room |