nfq I've rented those a couple of times, but couldn't justify buying one. They work great on both concrete and steel/metal depending on the blade you put in. My chainsaw is Stihl and still working like a champ after 27 years, although I did have to get the fuel line changed a few years ago as it completely rotted out. Not bad for the only repair in all those years of abuse by both me and my brother.
I use DeWalt Impact gun/Sawzall/Drill/Light kit. Hilti Hammer drill. Mastercraft hand tools. Milwaukee Electric impact. Lincoln welder. Mastercraft drill press. Vice Grip/Husky grips (about 10 pairs).
Anyone who says you need to buy snap-on stuff because they can break or whatever isn't using them right. I have only ever broken Mastercraft stuff by doing stupid things like using an 8' pipe on a 1/2" ratchet or using non-impact sockets on a high torque gun.
So it seems like as long as your not a mechanic or working on old rusty cars then the maatercraft maximum series is tue best bang for buck when the go on sale.
With that being said has any one used the warranty. Do you need to keep your receipts? Or can you just bring them in any CT and they replace it? Or do you have to send it in somewhere?