Wheel cutting machine
With the sub-disc, circles are divided into the same parts. They are used on wheel cutting machines and lathes. The circular part of the circuit contains a round with a vertical axis rotatable disc, which contains concentric circular lines, each of which has a special division marked by dimmed. The disk to be divisional is clamped centrally with the partial disc on the axis of them directly under the rice and turned with the partial disk from a substructure to a substructure. A mark is attached with the tear. The device is used to share gears.