It is rare you buy a tool that really works as good as you had hoped it would. I can't think of a single tool I own that exceeds my expectations like this one. It is crazy how easy I can now remove the screws form Honda and Toyota rotors. I used to struggle a little with rotor screws, you know the drill....use two hammers to loosen.... then a manual impact screwdriver.... a few choice words and if I was lucky I would be success in removing the rotor screws withing 5 or 10 minutes. If not I'd drill the heads off remove the threads. Not hard but annoying and time consuming. I rarely use an air hammer and only have a very inexpensive one (think it still only cost $10). I do have a good compressor though. I didn't really think my cheap air hammer had enough power to use this tool. I was wrong. The very first screw I tried was already very stripped and I was about to drill off the head to remove. I figured since I needed to drill the head off anyway, why not give this tool a try. The screw came out in less than 5 seconds. It was crazy. Now I do live in Georgia so I don't have the rust issues like up north, but rotor screws are still a pain no matter where you live. The most amazing thing is I have now used it on other screws that were very rusty and stripped. It has taken every one of them off even when there was almost nothing to grab onto. I find myself looking for rusted half stripped screws so I can use this tool.