Refers to Part 1 of the standard, covering Linear and Angular dimensions . The 'm' stands for Medium .
The 'k' class generally allows a symmetry deviation of 0.6mm. Run-out: Circular run-out for class 'k' is typically 0.2mm. Why use ISO 2768-mk? general tolerance iso 2768-mk
It signals to the machine shop that standard workshop accuracy is sufficient for non-critical areas, preventing over-processing and reducing costs. Refers to Part 1 of the standard, covering