Made in the U.S.A., the Wilton Tool GroupTradesman Vise, No. 1755,has a 5-1/2" jaw width, 5" jaw opening and 3-3/4" throat depth. This means that it can handle the most demanding clamping applications. Unlike most vises that have a fixed center nut, this one has a round channel vise nut anchored at the rear. This rear anchored nut 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. This enclosure keeps debris out and lubrication in for a lifetime of smooth operation.