Din 7160 Tolerance Page

| Linear Dimension Range (mm) | Tolerance Class "Medium" (DIN 7160) | Same as ISO 2768-1 (m) | | :--- | :--- | :--- | | 0.5 to 3 | ±0.1 mm | ±0.1 mm | | >3 to 6 | ±0.1 mm | ±0.1 mm | | >6 to 30 | ±0.2 mm | ±0.2 mm | | >30 to 120 | ±0.3 mm | ±0.3 mm | | >120 to 400 | ±0.5 mm | ±0.5 mm | | >400 to 1000 | ±0.8 mm | ±0.8 mm | | >1000 to 2000 | ±1.2 mm | ±1.2 mm |

Minimum clearance = Minimum hole – Maximum shaft Min clearance = 10.000 – 9.991 = (Wait, this is too small for assembly? Actually, H7/h6 is a locational fit, not a running fit. For easy assembly, use H7/g6).

is a technical standard titled "Deviations and Tolerances for Centre Distances for Shafts and Holes." Originally published by the Deutsches Institut für Normung (DIN), it provides a systematic method for tolerancing the distance between the center of a hole and the center of a shaft within an assembly.

Using ensures that parts will assemble 100% of the time (assuming worst-case conditions) without requiring unnecessarily expensive machining.