Vise Brands Athol/Starrett (Pre Number Change) Model 633 Vise Details Manufacturer Athol/Starrett (Pre Number Change) Model 633 Country of Origin USA Weight 57 pounds Jaw Width 4.5" Jaw Opening 7" Anvil? No Replaceable Jaws? No Pipe Jaws? No Base Type Stationary Swivel Jaw? Yes Screw Covered Quick Release? No Category Machinists Notes Patent Date Images (External Link)