Its sturdy, compact design makes this a very popular plumber's tool. Equipped with machine cut, heat treated and replaceable jaws, it can be rapidly tightened to provide a very powerful grip which makes the pipe immovable. The high tensile chain goes over the pipe and is fastened into the slot at the side of the two 'V' shaped jaws. This pipe vice is recommended for use with the Dawn Folding Vice Stand. (Part No. 62151M).