• 6 point type.
• Made from special alloy steel with high tenacity and hardness.
• Made from special vacuum heat-treated.
| Item | Spec | Dia. | Length |
| 445417 | 17 | 23.4 | 55 |
| 445419 | 19 | 25.4 | 55 |
| 445421 | 21 | 27.4 | 55 |
| Item | Spec | Dia. | Length |
| 445417 | 17 | 23.4 | 55 |
| 445419 | 19 | 25.4 | 55 |
| 445421 | 21 | 27.4 | 55 |