General Tolerance Iso 2768-mk May 2026

ISO 2768-mK is an international standard that provides a simplified system of for linear and geometrical dimensions. Instead of manually labeling every single dimension on a complex drawing, engineers use this shorthand to define acceptable levels of precision for all non-critical features.

Under ISO 2768-1, there are four tolerance classes: f (fine), m (medium), c (coarse), and v (very coarse). The class is the most frequently used in general mechanical engineering. Linear Dimensions (mm) general tolerance iso 2768-mk

ISO 2768‑1 defines general tolerances for linear and angular dimensions on drawings when no specific tolerance is given. "m" = medium tolerance class; "k" = coarse for form and position? — ISO 2768 uses two parts: Part 1 (general tolerances — linear/angular) with tolerance classes f (fine), m (medium), c (coarse), v (very coarse); Part 2 (geometrical tolerances — form and position) with symbols for tolerances (no separate k). Here “mk” likely means linear class m and unspecified geometric class (commonly k is not part of ISO 2768 — confirm in standard). ISO 2768-mK is an international standard that provides