MK Diamond cup wheels have a unique shape which allow for superior form mark removal. These highly efficient cups wheels are effective in the process of deburring and rough-surface grinding. Their lightweight design ensures fast surface grinding with a minimum of operator fatigue. Polycrystalline diamond cup wheels have been designed for the quick removal of epoxy and paint. The polycrystalline diamonds provide a smooth finish to any concrete surface and work five times faster than segmented diamond cup wheels. Wet/dry use.