This is worth repeating. You will use the 18v Fuel for your heavy lifting, but the M12 stuff you will use ALL THE TIME. The drill is the perfect size for poking four holes into studs to hang a TV. The impact driver gets used all the time. I only ended up with the multi-tool because it was $20 more when I got the kit of 3. It is awesome for retroing and cutting sheetrock. When I used to use a jab saw or utility knife to go along or across a stud, it was annoying and took forever. The multi-tool is the solution.