Moen Renzo faucets require a 7/64-inch hex wrench for removal or repair. Handle screws for all Moen one-handle kitchen faucets also use 7/64-inch hex wrenches. The same hex wrench is also used to remove the PosiTemp lever used to control water temperature and flow in Moen showers.
Hex wrenches, also known as Allen wrenches, are required for many but not all Moen faucet installations. Other tools needed for faucet installation include Phillips screwdrivers, flat screwdrivers, adjustable wrenches and pliers. Moen provides repair help for all its faucets via the contact page on the company's website or by phone. In addition, the Moen website includes diagrams and animations explaining how to do basic repair tasks.