DIABLO 7 in. x 1/4 in. x 5/8 in. 11 Arbor Metal Grinding Disc with Type 27 Depressed Center Hub DBD070250B01F - The Home Depot
7 Inch Tyrolit Quality Inox Abrasive Cutting Discs - China Cutting Wheel, Cutting Disc | Made-in-China.com
amoolo 4.5 Inch Flap Discs, 10PCS-80 Grit Angle Grinder Sanding Discs, High Density Abrasive Grinding Wheels Type 29 for Metal/Wood Grinding (7/8 inch Arbor Size) - Amazon.com
DEWALT 7-in Silicon Carbide Cutting/Grinding Wheel in the Abrasive Wheels department at Lowes.com