I have a mix of Milwaukee M12 and M18, all Fuel tools. The impact impressed me so much I bought more tools. The grinder/die grinder go through batteries pretty fast. The 3/8 ratchet isn't super torquey. I have a Dewalt 1/2" impact and other assorted tools at work, and none of them seem to do as well as the Milwaukee tools at home. Possibly apples to oranges, but I like the red stuff better.