Basically you use a grooving tool in a threading cycle and adjust the tool offset so it's center is at the crest of the thread. Have your thread start in front of the workpiece, and have the thread end just as the actual thread you just cut begins.
If you do a quick search you should be able to find some better explanations on it. I'm more of a milling guy so I've never done it before, but have seen it done. The thread looks quite nice once you get it all adjusted properly. |