Metric threading on a lathe. Myths busted. How to set up your own synchronization markers and return to them constantly if the need be without losing the thread geometry. The 'Half Nuts' can be dis engaged at any time during the threading procedure and the entire gear train, spindle and lead screw synchronization, then re established in less than a minute. This procedure suited to the many light industrial machines in every day use but may not be as easily applied in so many others. A demonstration of a different approach to getting the job done.
