Tolerance Iso 2768 Mk Pdf

standard is an international reference for general tolerances

3. Tolerance Tables for Class m (Medium)

Decoding the Code: What does "mK" mean?

• [ ] Confirm part function allows ±0.2 / ±0.3 mm typical.
• [ ] Specify tighter tolerances for fits, alignment, or bearings.
• [ ] Add note in title block: Unless otherwise specified, all tolerances per ISO 2768-mK.
• [ ] Do NOT apply to threads, welds, or non-rigid parts.
• [ ] Use ISO 2768-mK only for metal machining; for plastic, adjust.

The "m" class (Medium) is the default assumption for most machining operations using standard workshop equipment. It represents a balance between precision and manufacturability.

, covering geometrical tolerances such as flatness, straightness, and symmetry. Key Reference Resources (PDF & Articles) Comprehensive Overviews ISO 2768-1 Official Summary