This Klein Tools' 6-Inch (152 mm) Adjustable Wrench has extra capacity which allows you to use a smaller size wrench to handle bigger jobs, especially in confined areas. It is made of forged, heat-treated alloy steel for maximum strength and light weight. Precision-machined jaws are individually chosen and assembled by hand for smooth operation. Contoured, high-polish chrome handles are comfortable to use. 507-6 ADJUSTABLE WRENCH EXTRA-CAPACITY 6IN