The Klein 500-18 Standard Capacity 18-1/4-Inch Adjustable Wrench has precision-machined jaws that are individually chosen and assembled by hand for smooth operation. The wrench is finished in a high polished chrome and is heat-treated for long life. The 500-18 2-1/16-Inch capacity wrench is forged with heat-treated alloy steel for maximum strength and light weight, and is chrome-plated for rust resistance. The knurl turns smoothly for easy operation, while the tapered handle is contoured for comfortable use. The rail is ground for precision fit. Available in high-capacity. Since 1857, Klein Tools has manufactured the world's finest hand tools. Today, Klein Tools is the No.1 choice among professional tradesmen. We manufacture more than 3,000 tools and accessories, including pliers, cable and bolt cutters, wire strippers, voice-data-video tools and testers, fish tapes, conduit benders, drill bits, insulated tools, gloves and many other high-quality products. Klein Tools' dedication to quality and innovation continues with products available for professional tradesmen worldwide.