Heavy-duty Wilton® Serrated Machinist Bench Vises are designed to handle the most demanding clamping applications. Unlike most vises that have a fixed center nut, the Machinist round channel vise nut is anchored at the rear, which provides straight line pull and even pressure resulting in greater durability. Round channel design also allows for a completely enclosed spindle and nut assembly that keeps debris out and lubrication in for a lifetime of smooth operation. Vise is equipped with high-strength steel replaceable main jaws and a machined anvil work surface. Available in 3in. to 8in. jaw widths with stationary or swivel base. Please specify jaw width and base style when ordering. Limited lifetime warranty.