DIABLO 4-1/2 in. x 1/4 in. x 7/8 in. Metal Grinding Disc with Type 27 Depressed Center DBD045250701F - The Home Depot
Piece 4" Grinding and Cutting Wheel Assortment for Metal
Indestructible Disc for Grinder, Indestructible Disc 2.0 - Cut Everything in Seconds, 4" x 1/25" x 4/5” Cut Off Wheels, Diamond Metal Cutting Disc for Angle Grinder (3-Pack) - Walmart.com