Craftsman Mach Series Adjustable Wrench
The common crescent wrench: versatile, necessary, but ultimately inefficient. The Craftsman Mach Series Adjustable Wrench is designed to change this. It uses a slide-based adjustment and built-in ratcheting to offer 5X the efficiency of a traditional adjustable wrench, and combines this with the company's well-known reliability and lifetime guarantee to give you a tool that you'll buy once and keep in your toolbox forever.