Using ISO 2768-mK is ideal for non-critical features of a part where "standard" workshop accuracy is sufficient. It allows machinists to work faster by focusing only on the dimensions that truly require high precision (e.g., press fits or bearing seats). Common Tolerance Ranges for "mK"
120 to 400 mm: ±1.2 mm
[Name], Lead Engineer Date: ___________
ISO 2768 is an international standard for (also known as "blanket tolerances"). It applies to dimensions that are not individually tolerance on the drawing.
: Refers to ISO 2768-1 . This part defines general tolerances for linear and angular dimensions , such as lengths, diameters, radii, and chamfers. general tolerance iso 2768-mk
(ISO 2768-2), which covers geometric tolerances such as straightness, flatness, and symmetry. The "K" is one of three precision classes (H, K, and L). ISO 2768-m: Linear and Angular Dimensions
If you write "±0.05" next to a dimension, that specific value overrides the general ISO 2768-mK class for that feature. Using ISO 2768-mK is ideal for non-critical features
Applicable to angles where no tolerance is shown.
