Minimum projection of blades avoids damages in handling and uniform dimension makes the cup joint rigid. The simple robust design ensures that horizontals need no maintenance.
| Name | Size |
| Horizontal | 0.6 |
| Horizontal | 0.9 |
| Horizontal | 1 |
| Horizontal | 1.2 |
| Horizontal | 1.5 |
| Horizontal | 2 |
| Horizontal | 2.5 |
