The EVO 225D/1200 hand ring replaces the lid at the cathode end of the tube head. This revolving hand ring allows the user to let the X-ray beam point in any direction when the tube head is resting on a plane surface.
The position of the tube head is fixed by a spring-loaded lock. A bearing scale indicates the direction of the beam for reporting purposes.
The X-ray beam can be rotated 360˚ around the tube heads axis.