Vise Brands Colton Model 3 1/2 Vise Details Manufacturer Colton Model 3 1/2 Country of Origin USA Weight 4.5 pounds Jaw Width 2" Jaw Opening 2.25" Anvil? Yes Replaceable Jaws? No Pipe Jaws? No Base Type Clamp Swivel Jaw? No Screw Covered Quick Release? No Category Utility Notes Patent Date Images (External Link)