Electric Diamond Polisher Machine, 8" grinding diameters and 3pcs Diamond Grinding Wheels, 3800W Concrete Grinder for Polishing Stone Concrete Surface, Metal Descaling and Thinset Removing Basic Kit is up for auction in Tools & Home Improvement. The current bid is $6.00, 98% below the $275.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.