In the world of manufacturing, a single drawing is a contract. It promises that a hole will align with a shaft, that an edge will not cut a hand, and that a thousand identical parts will assemble without friction. But detailing every single dimension with a specific tolerance is time-consuming, expensive, and often unnecessary.
| 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 | iso 2768-mk
The result? Misaligned shafts, excess friction, and a full recall. In the world of manufacturing, a single drawing
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