This 11/16 in. combination wrench is drop forged and hardened chrome alloy steel and hardened. Box ends have rounded corners for increased torque. The Performance Tool combination wrenches are durable tools for most jobs. They are made from chrome alloy steel with either a full polish or satin finish that resists rust and corrosion. Sizes are stamped on the beam for quick, easy, and permanent identification. The box end is offset 15 degree for increased access to fasteners. the performance Tool combination wrenches are a must have for every toolbox.