I have a few M12 tools. My favorite by far is the Fuel 1/4 impact driver. I've fallen in love with Milwaukee and will buy nothing but from now on. I use to be a Porter Cable fan but that's before I had a Milwaukee tool in my hands. M12 Fuel impact driver M12 screwdriver M12 LED flashlight 1 4AH battery 2 2AH batteries 2 1.5AH batteries