Tolerance Iso 2768 Mk Pdf

Geometrical tolerances restrict form errors. The values below represent the total allowable variation for straightness, flatness, perpendicularity, and symmetry. Nominal Length Range (mm) Straightness & Flatness (mm) Perpendicularity (mm) Symmetry (mm) Over 10 to 30 Over 30 to 100 Over 100 to 300 Over 300 to 1000 Over 1000 to 3000

When a drawing specifies ISO 2768-mK, the "m" (Medium) applies to the following dimension ranges. These values are approximate for illustration; always verify with the official standard. Tolerance Iso 2768 Mk Pdf

Part 1 defines the permissible deviations for features like lengths, diameters, radii, and angles. The "m" class is the most common for general CNC machining and sheet metal work. Nominal Length Range (mm) Tolerance Class (± mm) over 3 to 6 over 6 to 30 over 30 to 120 over 120 to 400 over 400 to 1000 Data source: ISO 2768-2: Geometrical Tolerances (Class K) Geometrical tolerances restrict form errors