damo 2 inch dry diamond polishing drum wheels set of 7 pcs for granite marble concrete sink cutouts

1 of each grit 50,100,200,400,800,1500 and 3000; | 5/8″-11 female threads,2″ in diameter and 1-5/8″ in height; | Dry use only; | Vertical oscillation recommended for even wear; | Maximum speed 4,000RPM.