The Klein 68461 is an open-ended wrench and it's made for use with nuts and bolts. This wrench is one of the necessary hand tools to finish the job quickly. Each end has a different size opening of 3/8-inch x 7/16-inch and a 6" overall length. It has a nickel-chrome finish for added durability and is corrosion-resistant. It is also made of the highest quality alloy-steel that will last for years to come without being corroded. Klein Tools is the world leader in the design and production of quality products. In cooperation with Klein Tools, we at PlumbersStock carry high-quality and reliable products for a very affordable price. Get yours now here at PlumbersStock.