WALTER SURFACE TECHNOLOGIES ALU 4.5 in. x 7/8 in. Arbor x 1/4 in. T27 GR A-24-ALU Grinding Wheel for Aluminum (25-Pack) 08L450 - The Home Depot
DEWALT 4.5-in Aluminum Oxide Grinding Wheel in the Abrasive Wheels department at Lowes.com
Amazon.com: LIZMOF Grinding Wheels 4-1/2 x 7/8 Inch for General Purpose Metal & Stainless Steel, Aluminum Oxide Grinding Disc for Angle Grinder, Type 27, 10 PCS : Industrial & Scientific
25PCS 3 inch Cut Off Wheels 3/8" Arbor Metal Cutting Disc Die Grinder Blade Tool | eBay
4-1/2" x .045" x 7/8" Aluminum Cut Off Wheels Type 1 Discs - 25 Pack
Amazon.com: 50 PCS Cut Off Wheels LEILUO 4-1/2 x 1/24 x 7/8 inch Angle Grinder Cutting Wheel Ultra-Thin Cutting Disc for Metal Stainless Steel Aluminum Iron : Industrial & Scientific