If you are creating a technical drawing, place this note in the general title block or near the general notes section:
"GENERAL TOLERANCES: ISO 2768-mK"
Alternatively, the full legal text:
"Unless otherwise stated, all linear and angular dimensions comply with ISO 2768-1 (Class m). All geometrical tolerances (form, orientation, location) comply with ISO 2768-2 (Class K)."
While MK is the industry workhorse, it is not universal. Do not use ISO 2768 MK if: Tolerance Iso 2768 Mk Pdf
The tolerance values depend on the length of the feature.
| Nominal Length (mm) | Tolerance (Class K) | | :--- | :--- | | Up to 10 | 0.05 mm | | Over 10 up to 30 | 0.10 mm | | Over 30 up to 100 | 0.15 mm | | Over 100 up to 300 | 0.20 mm | | Over 300 up to 1000 | 0.30 mm | If you are creating a technical drawing, place
| Nominal Length Range | Tolerance | |----------------------|-----------| | ≤ 10 | 0.05 | | >10 to 30 | 0.1 | | >30 to 100 | 0.2 | | >100 to 300 | 0.4 | | >300 to 1000 | 0.6 | | >1000 to 3000 | 0.8 |