The Yost 6 inch stainless steel Bench vise mounts to a workbench to provide clamping action for various applications, including those in acidic and corrosive environments. The 304 stainless steel body has been passivated to increase its corrosion resistance, and the corrosion-resistant 303 stainless steel nuts can be replaced to prevent galling. This tool Conforms to Fed. Spec. GGG-V-410B Type IV and meets NSN 5120-00-293-0110 standards. 304 Stainless Steel, Standard "18/8" - 18% chromium, 8% nickel Vise chemically "passivated" using 10% nitric acid plus 2% hydrofluoric acid bath to enhance the development of "passive" oxides Ideally suited for food (meat, citrus), beverage (dairy, fruit juices, brewing & wine) and medical industries Able to withstand corrosive action of various acids Equipped with (1) set of 304 SS serrated machinist's jaws, (1) set of 304 SS smooth machinist's jaws and (1) set of hard plastic smooth machinist's jaws Stationary base with (2) bolt down points Main screw has a coarse-pitch thread for fast action Replaceable nut constructed from 303SS to prevent Galling Optional swivel base kit converts vise from stationary base mount to swivel base mount (optional up-charge) Optional serrated pipe jaw kit converts vise from bench vise to combination pipe & bench vise (optional up-charge) Yost Vises has been producing high-quality vises and vise accessories since 1908. We supply our products to both large distributors and individual craftsmen throughout the world ranging from industrial-grade vises, professional-grade vises, workshop-grade vises, light to heavy-duty vises, multifunction vises, welding vises, etc. Our products meet or exceed the Industrial Standard of Federal Specification GGG-V-410A, providing consumers with quality products that last for years at a great price.