The MILWAUKEE® DIAMOND MAX™ Double Row Diamond Cup Wheels deliver up to 2X faster material removal. Milwaukee's unique diamond formula provides up to 5X life on concrete. The double-row cup wheels have increased surface contact for increased grinding control and a smooth surface finish. These diamond cup wheels are designed with a vented core for efficient dust extraction. Ideal for use in grinding concrete, leveling, and adhesive removal. Equipped with 5/8-11 threaded arbor for use in angle grinders. For use wet and dry.