Just go to the Renzetti web site. There you will find a spares kit for the vise as well as fing out about the cam locking jaws for the vise with a price. Renzetti is a very good company and I am extremely satified with my two vises. I have the Renzetti Presentaion 4000 with the cam jaws with a saltwater base for my show and vacation tying and my every day tying vise is the Renzetti Master. Hope this helps you out.