Specifies Medium tolerance for linear and angular dimensions (external sizes, internal sizes, radii, and chamfer heights).
Permissible deviations (±) in millimeters based on the nominal size of the feature: Nominal Length Range (mm) Tolerance (± mm) Over 3 to 6 Over 6 to 30 Over 30 to 120 Over 120 to 400 Over 400 to 1,000 Over 1,000 to 2,000 Over 2,000 to 4,000 Angular Dimensions (Class m) iso 2768 m k
The second letter (uppercase) refers to , which governs form and position—straightness, flatness, perpendicularity, symmetry, and runout. Specifies Medium tolerance for linear and angular dimensions
ISO 2768-mK is a globally recognized manufacturing standard that defines for linear, angular, and geometrical dimensions on technical drawings that lack individual tolerance indications. By including the "mK" callout in a drawing's title block, engineers simplify documentation and ensure a consistent level of precision across international production lines. What Does "mK" Mean? By including the "mK" callout in a drawing's
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