MK Diamond Sawtec Arrow Cup Wheels are designed for floor preparation work prior to the polishing process. It is designed for grinding thick coatings, epoxy, urethane, and other membrane materials. The arrow shaped segment allows for scraping and grinding at the same time. The Arrow Cup Wheel from MK Diamond features venting holes to dissipate heat for extended wheel life. These diamond cup wheels provide fast production rates and long life and can be used for wet or dry grinding. Great for product removal before floor or concrete grinding or concrete polishing.