For sale is a Bridgeport Vise. Comes with a base. The base is from a Chinese vise. But the Bridgeport vise can rotate in it, and can be secured by the included bolts. However, the fit is not perfect as the bridgeport hole is wider than the pin on the base. If you put a sleeve there, it will be nicer. I would make one if I had a lathe. But I do not have one yet.