Vise Brands Athol/Starrett Model 923 1/2 Vise Details Manufacturer Athol/Starrett Model 923 1/2 Country of Origin USA Weight 40 pounds Jaw Width 3.5" Jaw Opening 5" Anvil? Yes Replaceable Jaws? Yes Pipe Jaws? No Base Type Stationary Swivel Jaw? No Screw Covered Quick Release? No Category Machinists Notes Patent Date Images (External Link)