| Nominal size range (mm) | Permitted deviation (mm) | |------------------------|--------------------------| | 0.5 – 3 | ±0.1 | | >3 – 6 | ±0.1 | | >6 – 30 | ±0.2 | | >30 – 120 | ±0.3 | | >120 – 400 | ±0.5 | | >400 – 1000 | ±0.8 |
When used correctly, it saves hours of drafting time, reduces quoting confusion, and keeps parts affordable. When misunderstood, it leads to assemblies that won’t close and suppliers who blame the drawing. iso 2768-mk
Enter — the shorthand of the engineering world. It is not a tool, but a rulebook. It tells the workshop: “For anything not explicitly stated, follow these limits.” | Nominal size range (mm) | Permitted deviation
The result? Misaligned shafts, excess friction, and a full recall. It is not a tool, but a rulebook
