| Nominal Length Range (mm) | Tolerance Class 'h' (mm) | | :--- | :--- | | up to 10 | 0.02 | | >10 up to 30 | 0.05 | | >30 up to 100 | 0.1 | | >100 up to 300 | 0.2 | | >300 up to 1000 | 0.5 | | >1000 up to 3000 | 1.0 |
Example 3 — Angular dimension 90° with ISO 2768‑m: iso 2768-mh tolerance chart
Limits the deviation of two features from a common center line. For lengths up to 100mm, the tolerance is 0.5mm . Why Use ISO 2768-mh? | Nominal Length Range (mm) | Tolerance Class
A 200 mm long surface must be flat within 0.2 mm. A hole's axis must be perpendicular to a reference surface within a 0.1 mm cylindrical zone if the feature size is between 30-100 mm. A 200 mm long surface must be flat within 0
3 — 6: ±0.1
To use the chart, follow these steps:
To implement this, simply add a note in or near the title block of your technical drawing: When NOT to Use It