General Tolerance Iso 2768-mk Better Link

While Part 1 handles size, Part 2 handles the of the part. The K class provides standard control over how straight, flat, or perpendicular a feature must be. Straightness and Flatness

120 to 400 mm: ±1.2 mm

ISO 2768-mk is the "Goldilocks" of manufacturing tolerances—not too tight, not too loose. It ensures that parts are functional and interchangeable without unnecessary manufacturing expenses. When you see it on a drawing, you’re looking at a standard of and Medium Geometrical control . general tolerance iso 2768-mk

The designation indicates a specific combination of tolerance classes: While Part 1 handles size, Part 2 handles the of the part