Yost Vises 133C 5" Combination Pipe and Bench Vise with Stationary Base Bench-mount vise with stationary base, 5" nominal top jaw width, and 0.125"- to 4.5"-diameter pipe capacity provides clamping action for heavy-duty applications Ductile iron body has a flat, stationary base for secure mounting Top jaws are grooved for enhanced grip and can be replaced when worn Pipe jaws adjust horizontally and vertically, are set back to prevent interference with top jaw use, and can be replaced when worn Meets Fed. Spec. GGG-V-410B Type IV specifications, and is made in USA