ISO 2768-mK is a global manufacturing standard used to simplify technical drawings by defining "general tolerances" for parts without specific tolerance callouts.
| Nominal Length (mm) | Tolerance (Class K) | | :--- | :--- | | Up to 100 | 0.40 mm | | Over 100 up to 300 | 0.60 mm | | Over 300 up to 1000 | 0.80 mm | Tolerance Iso 2768 Mk Pdf
| Range | Straightness / Flatness (mm) | Perpendicularity (mm) | Symmetry / Runout (mm) | | :--- | :--- | :--- | :--- | | 10 to 30 | 0.1 | 0.2 | 0.2 | | 30 to 100 | 0.2 | 0.3 | 0.3 | | 100 to 300 | 0.4 | 0.6 | 0.6 | | 300 to 1000 | 0.6 | 1.0 | 1.0 | | 1000 to 3000 | 0.8 | 1.4 | 1.4 | ISO 2768-mK is a global manufacturing standard used
The ISO 2768 MK PDF document provides detailed information on: Tolerance Iso 2768 Mk Pdf