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thanks - youre probably right but for 39 bucks its still going strong after a few weeks

I'll let you know if there is a problem - so far so good- only used it a couple of times - using a 4" wheel - very little heat build up

Harbor Freight says this will work on this motor this is what the controller is designed for - working great so far - I'm no rocket scientist though

Trying to find out a solution to anm expensive low rpm buffer - found this - buffer from Harbor freight 39.00, router speed controller Harbor freight 20.00 . tapered buffing spindles -ebay 15.00. ...