This is a military New Surplus tool. This can be used to clamp or reverse the jaws and use it as a spreading tool. It has 1 1/2" Dia. thread and 1 1/8" Hex on 1 end of the shaft to turn the shaft. We have cut the shaft in the middle and slid a pipe over each end and welded it to the ends to make a longer clamp or spreader. There are many possibilities for this tool. We have quantities of these. These are extremely heavy duty. Free shipping to anywhere in the U.S. lower 48 states. Call Randy if questions. show contact info