| Fersa | Bore diameter (mm) | Out diameter (mm) | T Size (mm) | Weight (Kg) |
|---|---|---|---|---|
| FDRK 444 | - | - | - | 16.60 |
| FDRK 444 OB | - | - | - | 17.00 |
| FDRK 4440 | - | - | - | 18.40 |
| FDRK 4441 | - | - | - | 17.20 |
| FDRK 4441 OB | - | - | - | 16.80 |
| FDRK 444A | - | - | - | 17.80 |
| FDRK 444A OB | - | - | - | 16.69 |
| FDRK 449 | - | - | - | 10.80 |
| FDRK 449 OB | - | - | - | 10.40 |
| FDRK 453A | - | - | - | 19.70 |
| FDRK 454A | - | - | - | 17.80 |
| FDRK 4753 | - | - | - | 3.13 |
| FDRK 4753 OB | - | - | - | 3.00 |
| FDRK 4841 | - | - | - | 13.40 |
| FDRK 4841 OB | - | - | - | 12.70 |
| FDRK 4842 | - | - | - | 11.00 |
| FDRK 4842 OB | - | - | - | 10.70 |
| FDRK 4843 | - | - | - | 6.70 |
| FDRK 4843 OB | - | - | - | 6.30 |
| FDRK 4844 | - | - | - | 6.20 |