ISO 2768: The Complete Guide to General Tolerances in Manufacturing
ISO 2768 defines general tolerances for machined parts in 4 classes: fine, medium, coarse, and very coarse. This guide covers the full tolerance tables for both Part 1 (linear and angular dimensions) and Part 2 (geometrical tolerances), explains what ISO 2768-mK means on a drawing, compares ISO 2768 to ASME Y14.5, and breaks down the common mistakes engineers make when specifying tolerances.