General Tolerance Iso 2768-mk !full!

For rounding edges and chamfer heights, the "m" class prescribes the following strict limits: Nominal Dimension Range (mm) Permissible Deviation (mm) ±0.2plus or minus 0.2 ±0.5plus or minus 0.5 ±1.0plus or minus 1.0 Angular Dimensions

| Shorter side length range | Permissible Deviation (± degrees/minutes) | |----------------------------|--------------------------------------------| | ≤ 10 mm | ±1° | | >10 – 50 mm | ±0°30' | | >50 – 120 mm | ±0°20' | | >120 – 400 mm | ±0°10' | | >400 mm | ±0°5' |

If a specific feature requires higher precision than the general 'mK' level, the designer must explicitly label that individual dimension with its own tolerance. Summary of Benefits Cleaner Drawings: Reduces visual clutter by removing common tolerance ranges. Standardization: general tolerance iso 2768-mk

: For class K, the general tolerance for symmetry is for all nominal lengths up to

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. For rounding edges and chamfer heights, the "m"

Or, if you want to be explicit:

For a nominal size (the dimension on the drawing), the permissible deviation under class is: Nominal Size Range (mm) Tolerance (± mm) Over 3 to 6 Over 6 to 30 Over 30 to 120 Over 120 to 400 Over 400 to 1000 Data sourced from ZEISS Quality Forum . External Radii and Chamfer Heights (mm) This link or copies made by others cannot be deleted

A feature for establishes a "medium" precision standard for parts, ensuring they are manufactured within acceptable limits for both size and shape without requiring individual tolerance callouts for every dimension. The designation breaks down into two parts:

Geometrical tolerances control the form and orientation of features. The "K" class sets standard limits for straightness, flatness, perpendicularity, symmetry, and run-out. Straightness and Flatness

Implementing general tolerances provides several key benefits across the design and manufacturing lifecycle:

: For parts and assemblies where specific tolerances are not given, ISO 2768-MK provides a general framework to ensure that parts are manufactured within acceptable limits.