First, a crucial clarification: The DIN ISO designation indicates that a German standard (DIN) has adopted an international standard (ISO) without changes.
| Nominal Length Range (mm) | f / m | c / v | | :--- | :--- | :--- | | up to 10 | ±1° | ±1°30' | | >10 up to 50 | ±0°30' | ±1° | | >50 up to 120 | ±0°20' | ±0°30' | | >120 up to 400 | ±0°10' | ±0°15' | | >400 | ±0°5' | ±0°10' | For classes f and m, the same table applies. For c and v, the same table applies (wider). 5. Permissible Deviations for Radii and Chamfer Heights For nominal radius or chamfer height (in mm). Tolerance = ± value. din iso 2768
The standard you are referring to is and DIN ISO 2768-2 . First, a crucial clarification: The DIN ISO designation