The efficient ductile/steel design makes the Jorgensen Style 30000 Bench Vises stronger than comparable vises of similar weight. Heavy cold-formed steel channel beams cover and protect the screws of these vises and add to their great strength. They feature swivel bases with dual lock-nuts, replaceable hardened-steel serrated jaw faces, large ground and polished anvils, permanent pipe jaws and large forming horns. The Jorgensen 30505 features: 5 inch opening capacity, 5 inch jaw width, 2-5/8 inch throat depth, 1/2 inch to 1-1/2 inch pipe jaw capacity and 29 pound weight. The Chicago based Pony Tools Inc. (formerly known as Adjustable Clamp Co.) which was established in 1903 is the manufacturer of all Pony and Jorgensen products. The Jorgensen Style 30000 vises are imported from China.