Amazon.com: Norton 4-1/2 in. Dia. x 7/8 in. Zirconia Aluminum Oxide Flap Disc 60 Grit 1 pc. : Industrial & Scientific
Amazon.com: Norton Charger Plus Depressed Center Abrasive Wheel, Type 27, Zirconia Alumina and Aluminum Oxide, 5/8"-11 Hub, 4-1/2" Diameter x 1/8" Thickness (Pack of 1) : Industrial & Scientific