ISO 2768 is a fundamental international standard designed to simplify technical drawings by providing for linear and angular dimensions . Instead of specifying a unique tolerance for every single dimension, designers can reference this standard in the drawing's title block to establish a "controlled margin of error" for all non-critical features . Structure of ISO 2768
Determined by the length of the shorter side of the angle. Symmetry: Applies to features with a shared median plane. iso 2768 general tolerances pdf exclusive
| Tolerance Class | Linear Tolerances (mm) | Angular Tolerances (°) | | --- | --- | --- | | f (Fine) | ±0.05 to ±0.5 | ±0.5 to ±2 | | m (Medium) | ±0.1 to ±1 | ±1 to ±5 | | c (Coarse) | ±0.2 to ±2 | ±2 to ±10 | | v (Very Coarse) | ±0.5 to ±5 | ±5 to ±20 | ISO 2768 is a fundamental international standard designed