What he said. The swivel bottom on my Chas. Parker (relic) vise doesn't move at all when it's tightened down. I love the swivel.... wouldn't have it any other way.hholmberg said:If you have a premium quality vice, Wiltom, Columbian, Reed, Yost and you lock the swivel down, you should experience no movement whatsoever. At least that has been my experience in the past, but again, I have not used import vices. (at least not in my shop) The swivel base vice is made for corner mounting on a bench and when needed, may be the only way to fit your part in the vice, so the swivel base is usually a very important part of a quality vice.

W-Cummins said:Swivel all the way, if the swivel base turns you have a pos vise.