The RIDGID Faucet and Sink Installer is a multipurpose under-sink plumbing tool. This tool is used to fasten and remove plastic basin nuts, supply line nuts, along with 7/8" and 1" hex nuts. The tool also features an aluminum insert for turning angle stop handles, and another aluminum insert for holding strainer baskets in place. Its extra long construction makes it ideal for hard to reach applications. The RIDGID Faucet & Sink Installer is a great addition to any toolbox.