Use adjustable wrenches from Grainger to help tighten and loosen bolts, nuts and other fasteners. The advantage of an adjustable wrench is that its jaws can be adjusted to various diameter ranges to help ensure a tight grip. Adjustable wrenches come in a wide range of sizes and handle types. Shop here for adjustable box wrenches; adjustable hex, pent and quad hydrant wrenches; insulated adjustable wrenches and more. Trust Grainger to provide you with a large variety of adjustable wrenches to help you match the tool to the job at hand.