X-Axis handwheel for the HiTorque large bench mill. This handwheel if aluminum with an anodized finish. The hand wheel has a locking system with a clutch. By pressing in on the handwheel, it locks into place for engaging the X-Axis. When disengaged, the axis cannot be accidently moved by contact with the handwheel.
The handwheel has a 20 mm bore, a 130 mm outside diameter and the handle threading is M8.
In your instruction manual, this part appears on the parts list as: