Got this off Marketplace several months ago for $40. It got run over but still worked! Then I messed with it and it didn't. Finally took it to Hilti and the guy said is have to pay for shipping to the mainland, and if not repairable, and I wanted it back, I'd need to pay for shipping back to me. With that caveat, I said go for it. One week later, it was dropped off at my house. New case, switch, motor and whatever else. No charge and works like new!