"The Wilton Tradesman Round Channel Vise is designed to handle the most demanding clamping applications. Unlike most vises that have a fixed center nut, the Tradesman round channel vise nut is anchored at the rear. This rear-anchored nut provides straight line pull and even pressure, resulting in greater durability. This 6.5in. jaw width heavy-duty vise is ideal for tradesmen, automotive applications, metal fabrication, service/MRO, utility work, and construction sites. Features a double lockdown replaceable jaw and 360 swivel base. Enclosed spindle construction. Incredible clamping power Large anvil. 60,000 PSI body parts. One of the top industrial bench vises in the U.S.A. Made in the U.S.A. with high quality cast iron for strength and durability. 360 Swivel Base Yes, Double Look-downs Yes, Handle Length in. 10 1/2, Jaw Depth in. 4, Replaceable Jaw Yes, Jaw Width in. 6 1/2, Jaw Capacity in. 6 1/2, Pipe Jaw 1/4 to 3 1/2. Fully enclosed design extends the life of the vise 60,000 PSI ductile iron body Steel pipe jaws hold up to 3.5in. pipe safely and securely Great for irregular shaped objects Reversible jaw inserts add versatility Large anvil designed to take a beating while forming and shaping materials Longer spindle nut ensures a lifetime of smooth spindle movement Lifetime lubricated and permanently sealed for trouble-free service Treated with rust inhibitors for all-weather performance 4-bolt mounting pattern instead of the industry-standard 3-bolt pattern for sturdier performance Meets federal spec# GGG-V-410a, Type IV"