Thank god for the "retribution" achieved by writing a review. I bought this grinder after it got a high rating on a bodywork forum. I received it and immediately found that it had no power. I make signs for a living and use multiple sanders to sand all types of materials: plywood, high density urethane, aluminum and steel. I am not writing as a landlord. I needed it to function just like my old Dynabrade. I sent it back to the manufacturer and they sent it back - still not enough power. SOMETHING ELSE! Luckily the pad broke and I bought a new Dynabrade. Doesn't matter. Choose Dynabrade from the start!