I've got one of the HF grinders. It comes with an extra set of brushes. I used them because I was doing more that it was intended for IMHO. I was cutting alot of square tubing and angle iron when I was fab'ing up a bottling stand as well as smoothing all the welds and getting ready for paint. I think I overheated it, but after I put the second set of brushes on (super easy to change) it has been running like a champ for 5 years albeit not as stressed as before. https://www.harborfreight.com/4-12-in-5-amp-heavy-duty-angle-grinder-60372.html This is the one I got and I'd call it worth the $20.