Forjadas en acero
| Característica | Referencia |
|---|---|
| 6x7 | 73640230 |
| 8x9 | 73640231 |
| 14x15 | 73640234 |
| 16x17 | 73640235 |
| 18x19 | 73640236 |
| 20x22 | 73640237 |
| 1/4x5/16 | 73645240 |
| 3/8x7/16 | 73645241 |
| 5/8x11/16 | 73645243 |
| 3/4x7/8 | 73645244 |
| 7/8x13/16 | 73645245 |
| 15/16x1 | 73645246 |
| 5/16"3/8 | 73645247 |
| 9/16x5/8 | 73645248 |
| 5/8x3/4 | 73645249 |
| 11/16x3/4 | 73645250 |
