I'm an ag teacher and we have a post vise in the shop that we have used for years. As everyone knows highschool kids can tear up an anvil with a rubber mallet. With that being said, one of my estudious pupils last year thought it would be a good idea to see if he could "crush" a piece of a 2 x 4 in it while myself and the other teacher were busy helping some other students on a trailer build we were working on. So, the youngin puts the wood in vise and tightens it as tight as he can get it and then gets one of his buddies to help him "torque" it. Well, it appears it stripped the vise. I wasn't aware anything was wrong until I tried to use the daggum thing the next day and couldn't get it to tighten. When I checked the jaws they just fell open. I have looked on it to try to find a brand or something so I would know where to start researching to find information as to whether it can be repaired or not but haven't had any luck and don't really know where to start.
Any advice on the vise would be greatly appreciated.
thanks