| Parameter | Tolerance Class K | |-----------|-------------------| | Symmetry (mm) | 0.5 mm | | Circular runout | 0.1 mm |
By combining these two, "mk" establishes a standard baseline of medium precision for the entire component. ISO 2768-1: Linear and Angular Tolerances (Class m)
Class K applies to when no feature-specific frame is given.
Note: While many third-party manufacturing websites offer free summary charts via PDF download, formal compliance audits require referencing official standards documents purchased directly through the ISO Store or national standards bodies like ANSI or DIN. Tolerance Iso 2768 Mk Pdf
This applies to features that should be centered relative to a datum.
The standard is an international framework for general tolerances used in mechanical engineering to simplify technical drawings by defining default permissible deviations for dimensions and geometrical features . Instead of tolerancing every single feature, designers specify "ISO 2768-mK" in the drawing’s title block, which automatically applies a baseline level of precision to all untoleranced parts. Understanding the "mK" Designation
| Nominal Length Range | Tolerance | |----------------------|-----------| | ≤ 10 | 0.05 | | >10 to 30 | 0.1 | | >30 to 100 | 0.2 | | >100 to 300 | 0.4 | | >300 to 1000 | 0.6 | | >1000 to 3000 | 0.8 | This applies to features that should be centered
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Look for vector-based PDFs rather than scanned images so that you can zoom in closely on small decimal points without experiencing pixelation.
Part 2 regulates form and position attributes. It ensures that components fit together correctly during assembly without warping or misalignment. Straightness and Flatness Understanding the "mK" Designation | Nominal Length Range
Understanding ISO 2768 MK Tolerances: A Comprehensive Guide (PDF & Standards)
What is ISO 2768? | CNC Machining Tolerance Standards - Fictiv