Iso 2768-mh Tolerance Chart Jun 2026

| Class | Linear (6-30mm) | Geometric (Flatness per 100mm) | Typical Application | | :--- | :--- | :--- | :--- | | | ±0.05mm | 0.1mm | Precision instruments, aerospace backups | | m (Medium) | ±0.2mm | 0.2mm | General machining, welding fixtures | | c (Coarse) | ±0.5mm | 0.4mm | Sand castings, agricultural equipment | | v (Very Coarse) | ±1.0mm | 0.8mm | Rough fabrications, concrete molds |

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Permissible deviations for angular dimensions for the "m" (medium) class. | Class | Linear (6-30mm) | Geometric (Flatness

In practice, for most machined parts under 120 mm, you get ±1 degree. Can’t copy the link right now