New grind rx7 with Bosch grinder and 3 diamond 30s wheels bearly used. I used this grinder once grinding the thin set off a floor. It’s not what this grinder is made for it’s made for polishing. It needs a set of the rubber bushings that hold the diamond wheels to the grinder. It’s not for grinding uneven surfaces. It’s for polishing countertops or polishing floors. Like I said I used it once. I would think the rubber bushing 20 to 50 bucks. I screwed up the ones that came with it grinding the uneven surface. The wheels just fall off. It’s awsome grinder and awsome setup for polishing. Don’t even want to sell it but don’t do a lot of polishing.
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