Vise Brands Phoenix Model 3 1/2 Vise Details Manufacturer Phoenix 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 Clamp Notes Patent Date Images (External Link)