Amazon.com: Norton 4-1/2 in. Dia. x 7/8 in. Zirconia Aluminum Oxide Flap Disc 60 Grit 1 pc. : Industrial & Scientific
amoolo 4 1/2 Inch Flap Disc, 10PCS-60 Grit Angle Grinder Sanding Discs, High Density Abrasive Grinding Wheels Type 29 for Metal/Wood Grinding (7/8 inch Arbor Size) - - Amazon.com
Amazon.com: Makita 10 Pack - 4 Inch Cut Off Wheels For 4" Grinders - Aggressive Cutting For Metal & Stainless Steel : Industrial & Scientific