Yes Rohm makes a great upgrade. If you have a 27xx or later you'll need the model for 9/16-18 spindle, which Rohm also makes special just for Milwaukee. I've upgraded like 7 Milwaukee drills w Rohm including all my M12 stuff. SOOOO worth it.I have never been very impressed with the chuck on my M18 hammer drill. tool is about 5 years old. Chuck just shit on me and I managed to get the bit out with the help of a vice. Has anyone found an upgrade?
I bought an M12 hackzall a few years ago for cutting apart exhaust and whatever other rotten junk out from under vehicles when flames or sparks weren’t wanted. Works great! Used it quite a bit more often at work (auto mech at the time) then I thought I would. Now I have it at home and I even bring it camping with me now.I use the shit out of my fuel sawzall and a pruning blade. Works great for light duty stuff. Now I'm looking at either the M12 and M18 Fuel hackzalls for working in tighter quarters under the truck. Ebay seems to have the best deals.