I just saw that fireball tool video .Hm, now that's an idea. This vise that I got has a 4" jaw and looks like one can open the jaws over 6 1/2" . I have 2 craftsman vises that are about the same size but different models or years. One, I can make work, but the jaws are ugly ( but I know that I can do something about that). The other one is in better shape but the nut was stripped. Right now, I'll use a HF that works okay but ugh. So right now, I'll fix the one craftsman. The other one, I'll try to make it work as a learning process. The NYA is so much better that it's worth a shot. Right now, trying to get the handle free on the NYA, it won't slide because of the rust.