Designed for fast removing hard and tacky surfaces, including heavy epoxy, coatings, mastic and glues. The PCD tips Eliminate the gumming up issue on segments and maximize the production rate. The coating thus tends to be quickly reduced to dust or crumbs by Ashine PCD Grinding Cup Wheel. Size available: 4 inch PCD Grinding Disc / 5 inch PCD Grinding Disc / 7 Inch PCD Grinding Disc