Patent ID: 8464618

Claim:
A numerically controlled lathe, comprising: a spindle; a guide bush having a guide hole thereon and supporting an end portion of a workpiece extending from the spindle; a first tool post having a first tool machining the workpiece; and a second tool post having a second tool machining the workpiece, wherein an inner diameter of the guide hole is smaller than an outer diameter of the workpiece, the first tool post is disposed to machine the workpiece between the guide bush and the spindle by the first tool so that the outer diameter of the workpiece fits to the inner diameter of the guide hole, the guide bush is disposed to pass the workpiece machined by the first tool through the guide hole so that the end portion of the workpiece machined by the first tool projects from the guide bush, and the second tool post is disposed to machine the end portion of the workpiece projecting from the guide bush by the second tool.