Much of modern day machining is carried out by computer numerical control (CNC), in which computers are used to control the movement and operation of the mills, lathes, and other cutting machines.

There is one precise aluminum components made in Tuowei. It has to be made with high precision the thread and structure that they can be detected by high precision CNC machining and lathe.These two parts will be assembled together with the thread.When we cnc lathe the parts with thread, it is important for our clients to provide the parts to test the fit. And we need a 2d drawing which gives the details for the thread.