I doubt this tool really went to 15,000rpm. Once you attach it, the work slows down, the crawling becomes nothing more than a vibrating mill. I don't know, maybe I got a glitch, but I doubt it. There were no grinding wheels included, as shown in the video. I am not satisfied with this product and I hesitate to order something like this again. It's compact and can get into tight spaces and if you let it accelerate and then get to work for a short time and then accelerate again I'd say it works, but it's not what I was expecting. I've tried setting the pressure to 125 pounds and adjusting the small adjustment knob to no avail.
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