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
4.5" x 1/4 x 7/8" Metal Grinding Disc Type 27
Amazon.com: 10 Pack 4.5'' x 7/8'' Premium High Density Calcined Aluminum Oxide Flap Disc 120 Grit Type 29 Angle Grinder Sanding Disc Abrasive Grinding Discs Bevel Type Grinder Wheel for Grinding Metal