Vise Brands NuTYP International Model 603-1/2 Vise Details Manufacturer NuTYP International Model 603-1/2 Country of Origin USA Weight 46 pounds Jaw Width 3.5" Jaw Opening 4" 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)