UNI 6735 concerns striking open-end wrenches (DIN 133 type). The dimensioned drawing shows jaw opening S, head width W, head thickness a and overall length L.

| Nominal opening S (mm) | Head width W (mm) | Head thickness a (mm) | Overall length L (mm) |
|---|---|---|---|
| 24 | 40 | 14 | 180 |
| 27 | 56 | 16 | 180 |
| 30 | 62 | 17 | 190 |
| 32 | 70 | 17 | 200 |
| 36 | 76 | 17.5 | 215 |
| 41 | 86 | 18.5 | 235 |
| 46 | 98 | 20 | 255 |
| 50 | 105 | 21 | 275 |
| 55 | 116 | 23 | 300 |
The page describes the wrench standard and lists selected supplier dimensions. Confirm tooling requirements against the governing standard edition.
Reference schedule: USAG catalogue, UNI 6735 / DIN 133.