Delta Faucet Aerator Tool

On some new faucets, the aerator is recessed and a special tool is needed to remove or reinstall the aerator. Such tools can be purchased for less than $10 if you know the model of the aerator as they come in different sizes. (A universal tool is also available.) Making one can be a short, satisfying project with a 3D printer.

The long cylindrical part of this tool functions like a screwdriver handle and prints with no support. The long cylinder also allows the tool to be kept slightly compr