Designed for unsurpassed toughness and serviceability, the RIDGID Model 768 Adjustable Wrench is an asset to any plumber's toolbox. These adjustable wrenches are versatile tools that have jaws of adjustable widths for use on a wide variety of nut sizes. Offering exceptional durability, this wrench is made of forged and heat-treated high grade alloy steel for maximum strength. The wrench features nickel-based plating with a brushed finish to reduce rust and corrosion, extending the life of the tool. The jaw scales have both metric and SAE graduations for quick and easy adjustments and improved productivity for a wide range of tasks. This 18-inch (450 mm) adjustable wrench has a 2-7/16" capacity for use on a variety of fastener sizes. Since 1923, RIDGID has remained the symbol of certainty to dedicated professionals of the expert trades. Every tool that bears the RIDGID brand is engineered to the same high standards of quality, strength, and endurance, as was that first heavy-duty pipe wrench more than 80 years ago.