| Shorter Side Length Range (mm) | Tolerance (mm) | | :--- | :--- | | Up to 100 | 0.2 | | Over 100 up to 300 | 0.4 | | Over 300 up to 1000 | 0.6 | | Over 1000 up to 3000 | 0.8 |
These values apply to linear dimensions like lengths, widths, and hole diameters. Nominal Dimension (mm) Tolerance (± mm) 120 to 400 400 to 1000 1000 to 2000
The of the part (structural, moving assembly, visual prototype?) Share public link iso 2768-mh tolerance chart
This applies to the allowed angular deviation from a 90-degree relationship between two features.
Because the "m" in ISO 2768-mH stands for "medium," we use the "m" column in Part 1 to determine the permissible deviation for linear measurements. The permissible deviations rely on the nominal dimension of the part. The "m" (medium) class defines tolerances ranging from ±plus or minus 0.1 mm for features under 6 mm to ±plus or minus | Shorter Side Length Range (mm) | Tolerance
For straightness: length of relevant line. For flatness: larger side length or diameter .
: The general tolerance for circular run-out under Class H is 0.1 mm . Practical Application: How to Use the Chart The permissible deviations rely on the nominal dimension
The use of the ISO 2768-MH tolerance chart offers several benefits, including:
It ensures consistency across different suppliers, machines, and manufacturing floors globally.
When a drawing specifies "ISO 2768-mh," it refers to two distinct parts of the standard: