Using the Klein Tools 670-3 screwdriver is a breeze. Simply place the cabinet tip on the screw head and use the crank-action handle to spin the screw in or out. You can operate it with one hand for quick work. When using, make sure the tip fits well on the screw to avoid slipping and causing damage. This screwdriver is not insulated, so don't use it on live electrical parts. To maintain it, keep it clean. You can wipe it with a dry cloth after use. If it gets dirty, you can use a mild detergent and then dry it thoroughly. Since it's made of steel, try to store it in a dry place to prevent rust. And remember, it meets high standards, so you can rely on it for your projects.