Select a cable tray bend, click the dimension for the radius, and enter a new value. Since the jaws of the bolt cutter drags a layer of zinc across the cut end and forms a protective layer. You can specify a different multiplier for the bend radius in the Type Properties dialog for cable. Due to popular requests, eVolve contains a group of cable tray families based on the B-Line Redi Rail Cable Tray System. The system includes straight ladder sections, crosses, tees,. Overview. Bend Angle Angle 90°- Check this box to set the angle to 90°.