The "m" class is the most common in mechanical engineering, providing a balance between functional precision and manufacturing cost. 2. The "k" (Class K) – Geometric Tolerances
Therefore, means: "Use Medium tolerances for linear measurements and Class K tolerances for geometric deviations." Tolerance Iso 2768 Mk Pdf
The Basics Of General Tolerance Standard - ISO 2768-mK - LEADRP The "m" class is the most common in