The Tradesman XC vise is designed to handle the most demanding clamping applications under the most extreme environmental conditions. Unlike most vises that have a fixed center nut, all Tradesman round channel vises use a nut anchored at the rear which provides straight line pull and even pressure resulting in greater durability. The round channel design also allows for a completely enclosed spindle and nut assembly keeping debris out and lubrication in for a lifetime of smooth operation. For ultimate versatility, all Tradesman vises are equipped with main jaws, pipe jaws and a machined anvil work surface. The Tradesman XC models also include electroless nickel coating of key components, prolonging life in corrosive environments, saving hundreds of dollars on repairs and avoiding countless-hours of lost work downtime. Material: Cast Iron.