Vise Brands Athol/Starrett Model 323 1/2X Vise Details Manufacturer Athol/Starrett Model 323 1/2X Country of Origin USA Weight pounds Jaw Width 3.5" Jaw Opening " Anvil? No Replaceable Jaws? Yes Pipe Jaws? Yes Base Type Swivel Swivel Jaw? No Screw Covered Quick Release? No Category Combination Notes Patent Date Images (External Link)