... outer teeth: 50mm FR-50*50A-03 Hydraulic rolling machine, Automatic pipe threading machineMax length of cutting -inner teeth30mmMax length of ... are features of Threaded Rolling Machines:1, Specialized for metal tubes designing, use triangle support, it can guarantee the work ... use the Japanese bearing.5, Lower noise and durable.6, Automatic feeding device is optional.7, rolling shape: rolling thread, ...