This C.H. Hanson clamp is built to last a lifetime. It is made from high-grade alloy steel for maximum toughness & durability. This clamp has a nickel-plated finish, which resists rust & corrosion. The clamp features a traditional release lever, which allows the clamp to be released even at a high pressure. The traditional adjustment screw allows the clamp to fit to various sizes & pressures. This 200mm (8 inch) Locking Sheet Metal Clamp locks on to work, & therefore eliminates hand gripping. An ideal tool for metalwork, it makes bending, forming & crimping jobs easier. Meets all ASME product specifications.