7 Inch 180mm Diamond Grinding Cup Wheels with 9 Arrow Segments Concrete Grinding Wheel Abrasive Diamond Tool (JOY-CW-A9) - China Diamond Grinding Wheels, Floor Grinder | Made-in-China.com
8 inch Flat Diamond Grinding Wheel Abrasive Metal Cutter for Angle Grinder 150# | eBay
EDiamondTools 4.5 in. Concrete Grinding Cup Wheel, Diamond Rim, 9 Turbo Diamond Blade Segments, 7/8 in. 5/8 in. Non-Threaded Arbor SWS4509A7 - The Home Depot
SHDIATOOL 9 Inch Diamond Grinding Disc for Granite Marble Single Side Coated Diamond Cutting Wheel with 5/8-Inch-11 Arbor - Amazon.com
Amazon.com: ACTINTOOL 4.5 in. x 5/8-11 in. Threaded Arbor 9 Segments Diamond Turbo Cup Wheel for Stone Concrete Masonry (5/8"-11 Threaded) : Industrial & Scientific