The Klein Tools 12-in-1 Faucet Wrench Multi Tool allows you to use one tool for the most common faucet, toilet, and sink installations and repairs. On one side of the handle, the tool features a 2-, 3-, 4-, and 6-tab mount wrench. The inner metal piece accommodates 15/16-, 3/4-, 7/8-, and 5/8-Inch hex nuts, allowing for the supply lines to run through the middle during installation. The end piece has a four slot strainer wrench on one end, and an aerator wrench that fits junior-sized aerators.