Vise Brands Charles Parker Model 12 Vise Details Manufacturer Charles Parker Model 12 Country of Origin USA Weight 42.5 pounds Jaw Width 4.125" Jaw Opening " 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)