Good rotary tool for light work. It's not nearly as powerful as my awesome no-name network rotary tool I've had for years, but it's definitely useful for small jobs - deburring, small smoothing jobs, maybe sawing sheet metal with a hacksaw blade. . It's useful, but it won't replace the one I use more often. I burned the last battery rotary I had from working too hard on it. Now I know better. It's only good for small quick jobs. It has a durable feel, is easy to swap out and is comfortable to hold. I'm not sure how long the battery will last, but it worked fine for about half an hour when I used it.