The Yost 460 6-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. This utility combination pipe and bench vise has a 360-degree swivel base and mounts to a workbench too. The 360-degree swivel base features 2 lockdowns. Hand-tightening the lock knob on the base secures its position.