The marking is achieved by a number of revolutions of the marking roll. The marking roll is bound to a certain work piece diameter. The typ 40-A is especially suitable for turned-parts with variable marking contents, inasmuch the round segment with single letters can be exchanged, according to the application requirements.

| Marking- types |
||
| Description | Reading direction | Position driving knurl |
| S | Marking text vertical | With driving points between the text |
| SL | Marking text vertical | With driving knurl left |
| SR | Marking text vertical | With driving knurl right |
| SLR | Marking text vertical | With driving knurl left and right |
| W | Marking text horizontal | With driving points between the text |
| WL | Marking text horizontal | Witj driving knurl left |
| WR | Marking text horizontal | With driving knurl right |
| WLR | Marking text horizontal | With driving knurl left and right |