RIDGID 86917 762 Adjustable Wrench, 12-inch Adjustable Wrench for Metric and SAE Made of high grade alloy steel that is forged and heat-treated for maximum strength and durability Wrench features nickel-based plating with a brushed finish to reduce rust and corrosion, extending the life of the tool Jaw scales have SAE and metric graduations for quick and easy adjustments and improved productivity 12-inch (300 mm) adjustable wrench has a 1-5/16-inch (35 mm) jaw opening for use on a variety of fastener sizes RIDGID covers its products with a lifetime warranty against defects in material or workmanship for the life of the tool