I made this vise tool to grip round stock for heading. It was forged from 1" square about 10" long. The lip was made by using a butcher and set hammer. Sam Salvati was my striker and was quite helpful.I am very proud of this tool and hope to get a lot of use out of it. it has 1/4", 5/16", 3/8", 1/2" holes and space for one more if I need a special size.