Makita 4-1/2 in. Turbo Rim General Purpose Diamond Blade A-94552 - The Home Depot
JINGLING 4" inch Diamond FLAT Tipped Cutting Disc Grinding Wheel Coated Grit 60 Stone Tools for Angle Grinder - Amazon.com
OKDIAMOND Diamond Cutting Wheel 4-1/2 x 7/8 Inch for Metal, Cut Off Wheel with 3000+ Cuts on Rebar, Steel, Iron and INOX, for Angle Grinder,4.5 inch: Amazon.com: Tools & Home Improvement