Whether your part is being machined in Germany, the US, or China, "ISO 2768-mh" means exactly the same thing. How to Indicate it on Your Drawing
The ISO 2768-MH tolerance chart also provides guidelines for geometric tolerances, including: iso 2768-mh tolerance chart
class tolerance for geometric features like straightness, flatness, and perpendicularity. ISO 2768-1: Linear Dimensions (Medium Class "m") Whether your part is being machined in Germany,
✅ Example: A 20 mm diameter hole with no tolerance is allowed to be 20.00 mm to 20.33 mm. It can never be 19.98 mm. iso 2768-mh tolerance chart