| Nominal Length Range (mm) | Class H | Class K | Class L | |--------------------------:|:-------:|:-------:|:-------:| | ≤ 10 | 0.02 | 0.05 | 0.1 | | >10 – 30 | 0.05 | 0.1 | 0.2 | | >30 – 100 | 0.1 | 0.2 | 0.4 | | >100 – 300 | 0.2 | 0.4 | 0.8 | | >300 – 1000 | 0.3 | 0.6 | 1.2 | | >1000 – 3000 | 0.4 | 0.8 | 1.6 |
The standard is divided into two primary parts, often cited together as a single reference like . iso 2768 general tolerances pdf exclusive
Focuses on linear and angular dimensions, such as lengths, diameters, radii, and chamfer heights. It defines four tolerance classes: f (fine): For high-precision components. m (medium): The most common class for standard machining. c (coarse): For parts where high precision is not critical. | Nominal Length Range (mm) | Class H