TEKTON 8-Inch Swivel Bench Vise | 54008 Cast iron construction (30,000 PSI tensile strength) with replaceable serrated steel jaws holds work with a sure, nonslip grip 120-degree swivel base with dual lock-down nuts positions workpiece where you need it Three mounting holes anchor vise securely to workbench Polished steel anvil offers a smooth, consistent work surface for shaping metal pieces Acme-threaded screw glides smoothly without binding