The Yost 480 8-inch utility combination pipe and bench vise is made from a 30,000 PSI cast grey iron with a steel U-channel bar. Equipped with a large anvil work surface, it also has replaceable hardened steel serrated top jaws and a large pipe capacity permanent serrated pipe jaw. The Yost Apprentice series utility combination pipe and bench vise has a 360-degree swivel base and mounts to a workbench to provide clamping action for light-duty applications. The 360-degree swivel base featuring (2) lockdowns, adjusts the direction of the jaws for proper placement. Hand-tightening the lock knob on the base secures its position. The vise has a cast iron body with steel U-channel bar for durability and has a flat portion that acts as an anvil and additional work surface. The hardened steel top jaws can be replaced when worn, and the built-in cast iron pipe jaws are grooved for enhanced grip. The jaws draw closer together or farther apart by turning the vise handle clockwise or counterclockwise. This tool Conforms to Fed. Spec. GGG-V-410B Type IV and meets NSN 5120-00-293-0110 standards.