Diamond Cup Wheel ideal for grinding concrete, masonry and a variety of other applications. The double row configuration provides a smoother finish. Product Features Ideal for use on concrete and masonry Fast and aggressive grinding Hardened steel body Can be used wet or dry Compatible with 22,23mm bore angle grinders Technical Data Disc Diameter: 125 mm Hole Size: 22,23 mm Diamond Segment Height: 5 mm Maximum Speed [rpm]: 12200