Vise Brands Prentiss Model 453-1/2 Vise Details Manufacturer Prentiss Model 453-1/2 Country of Origin USA Weight 32 pounds Jaw Width 3.5" Jaw Opening 4.75" Anvil? No Replaceable Jaws? Yes Pipe Jaws? No Base Type Swivel Swivel Jaw? Yes Screw Covered Quick Release? No Category Machinists Notes Patent Date Images (External Link)