Engineering reference for CNC machining tolerances, ISO 2768 Fine/Medium linear dimensions, Swiss turning capabilities, and GD&T geometric controls.
| Class | 0.5 to 3mm | 3 to 6mm | 6 to 30mm | 30 to 120mm | Application |
|---|---|---|---|---|---|
| f (Fine) | ±0.05 mm | ±0.05 mm | ±0.10 mm | ±0.15 mm | Swiss CNC Turned Parts |
| m (Medium) | ±0.10 mm | ±0.10 mm | ±0.20 mm | ±0.30 mm | Commercial Pipe Fittings |
