Iso 2768 General Tolerances Pdf [better] May 2026

| Range of Nominal Length of Shorter Side (mm) | Fine (f) | Medium (m) | Coarse (c) | Very Coarse (v) | | :--- | :--- | :--- | :--- | :--- | | up to 10 | ±1° | ±1° | ±1°30' | ±3° | | >10 up to 50 | ±0°30' | ±0°30' | ±1° | ±2° | | >50 up to 120 | ±0°20' | ±0°20' | ±0°30' | ±1° | | >120 up to 400 | ±0°10' | ±0°10' | ±0°15' | ±0°30' | | >400 | ±0°5' | ±0°5' | ±0°10' | ±0°20' | While Part 1 covers size, Part 2 covers form and position . This is where the "H", "K", "L" tolerance grades appear. (Note: For geometrical tolerances, the classes are H, K, and L).

Note: Values are in millimeters (mm). For radii (R) and chamfer heights (h), the tolerances are slightly different: Iso 2768 General Tolerances Pdf

Introduction In the world of mechanical engineering and manufacturing, precision is paramount. However, specifying tight tolerances on every single dimension of a part is impractical, time-consuming, and expensive. This is where ISO 2768 comes into play. | Range of Nominal Length of Shorter Side