This article provides a complete breakdown of ISO 2768 MK, explains the difference between the "m" and "K" classes, discusses how to interpret the standard, and explains why having an official reference table is essential for your workshop.
"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)." Tolerance Iso 2768 Mk Pdf
| Nominal Size Range | Tolerance (mm) | |--------------------|----------------| | 0.5 to 3 | ±0.1 | | >3 to 6 | ±0.1 | | >6 to 30 | ±0.2 | | >30 to 120 | ±0.3 | | >120 to 400 | ±0.5 | | >400 to 1000 | ±0.8 | | >1000 to 2000 | ±1.2 | This article provides a complete breakdown of ISO