Concord Blades GCD045FHP 4.5 Inch Double Rowed Diamond Cup Wheel with 5/8"-11 Thread

4.5 Inch Double Rowed Diamond Brazed Cup Wheel for Grinding Concrete with 5/8"-11mm Thread. Features venting holes for fast, dry or wet grinding with long life. This cup wheel is ideal for surface preparation, edge blending, smooth shaping, finishing, de-burring and tilt wall finishing of concrete or other masonry surfaces. Can be used to smooth concrete or field stone using an angle grinder or floor grinder.