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 more than just a series of numbers on a chart; it is an essential communication tool that bridges the gap between design intent and manufacturing reality. Its notation provides a clear, efficient, and internationally understood definition of allowable deviations for non-critical dimensions on a part. By mastering the meaning of 'm' and 'K', engineers can produce cleaner drawings, manufacturers can work without ambiguity, and companies can ensure that their parts are produced cost-effectively to a standard of quality that is fit for purpose.
Controls the alignment of different cylindrical features. general tolerance iso 2768-mk
Specifies "Medium" tolerances for linear and angular dimensions (such as lengths, widths, radii, and diameters).
ISO 2768 is an international standard that defines general tolerances for linear and angular dimensions, as well as geometric tolerances for features without individual tolerance indications. It simplifies technical drawings by eliminating the need to specify tolerances for every single dimension. is a combination of two parts of the standard: ISO 2768‑1 defines general tolerances for linear and
[Name], Lead Engineer Date: ___________
Imagine a shaft with a nominal diameter of and a length of 200 mm . Here “mk” likely means linear class m and
Defines the tolerance class for linear and angular dimensions (Medium).