Costruite in acciaio legato con durezza HRC 48 ÷ 52.
Manufactured with hardened steel alloy for a hardness 48 ÷ 52 HRC
| TYPE | ø | H | THREAD | > Ø < | CODE | CODE |
| mm | mm | RH | LH | |||
| ER25 | 42 | 20 | M32x1,5 | ø1 – ø16 | 9125BR | 9125BL |
| ER32 | 50 | 22,5 | M40x1,5 | ø2 – ø20 | 9126BR | 9126BL |
| ER40 | 63 | 25,5 | M50x1,5 | ø3 – ø30 | 9127BR | 9127BL |
