Process tolerances should be indicated by your supplier, however below are some general guidelines
| Process Tolerances | |
|---|---|
| Process | Tolerance in mm | 
| Drilling and Punching | ± 0.5 | 
| Grinding | ± 0.12 | 
| Guillotine | ± 1.5 | 
| Laser Cutting | ± 0.4 | 
| Plasma Cutting | ± 1 | 
| Hy-def Plasma | ± 0.5 | 
| Gas Cutting | ± 2 | 
| Plate Forming | ± 0.5 | 
| Saw Cutting | ± 3 |