I bought this grinder about five months ago and the bearings have failed. I took it back to Home Depot and they replaced it with a display because they didn't have it in stock. I took it home and it lasted 1 1/2 months and it stopped the orbital sander. I brought it back to Home Depot and was denied a refund because I can't find the receipt. I'm a beginner woodworker so I haven't used it much. I would advise you to look for another brand before buying.