... :grinding ,polishing ,sanding KMJ-2714 diamond and CBN hand padsplace of origin:dongguan ,china(mainland)type:diamond hand pads brand name ... products( abrasive belts, block, discs, pads, bands) are made with our new production technologue. Made with diamond or CBN, and some other bond materials ... noise when working. best quality diamond and CBN hand pads with thick foam