Features: 1.mainly used for processinginner and outer pipe thread (including metric thread and inch thread). 2.It can undertake variousturning works such as turning inner and outer cylindrical surface, conicalsurface and other revolution and end   surfaceas general CNC lathes. 3.It used in various machineryprocessing, petroleum exploiting and delivering, mining, vehicle and ship parts 4.The spindle bore is very large and set up double chucks both front and ack and you can choose electric chucks as you like. 5.The surface of the slide railof the bed is treated by the super audio quench, which can be endurable andwear-resisting. The slide rail f saddle is treated by wear-resisting layercoated, to avoid the crawling. 6.There are two types of speedchange: Manual and step less. 7.Set up self lubricationsystem, and easy to maintain.