DIABLO 4-1/2 in. x 1/4 in. x 7/8 in. Masonry Grinding Disc with Type 27 Depressed Center DBD045250701C - The Home Depot
LUCKUT Grinding Wheels Grinding Discs 4-1/2'' x 1/4'' x 7/8'' Grinder Wheel Center Metal Aggressive Grinding for Angle Grinders-5 Pack: Amazon.com: Industrial & Scientific
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
Amazon.com: WORKPRO 10 Pack Grinding Wheels, General Metal Grinding Wheel for Metal, Stainless Steel, etc. Aggressive Grinding Disc for Angle Grinder, Type 27 Depressed Center Disc, 4-1/2" x 15/64" x 7/8" :
RapidGRIND™ Ceramic Hybrid Grinding Disc Type 29M — Bullard Abrasives — Bullard Abrasives | Custom Cutting Grinding and Finishing Abrasives
Amazon.com: MR.Cut 4" Stainless Steel Rust Remover Grinding Wheel for Angle Grinder | Power Disc Tool Suitable for Metal, Aluminum Oxide, INOX Steel etc - Type 27,15,200 RPM, 80M/S, 10 pcs Combo