MOSTARTOOLS 7 Inch PCD grinding cup wheel is one of the fastest way to remove all kinds of coatings and adhesives,indluding heavy epoxy,glues,mastic,paint,carpet residue,acrylics,tile thin set,urethane and other membranes . It is made of highest quality polycrystalline diamonds with 9 pcs quarter round PCD Segments on each PCD grinding wheel.It scrapes and rips the toughest coatings quickly and effectively. Our PCD grinding disc scraping action eliminates gumming up of segments and maximizes production.And it is also known as PCD disc,panit removal disc. All of our PCD cup wheels are balanced well and the segments will not drop off even during high stress operations.The 5/8"-11 thread make the PCD grinding wheel suited for all kinds of angle grinder.