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
Bosch 4-1/2 in. Small Angle Grinder Premium Turbo Rim Diamond Blade for Smooth Cut for Concrete and Masonry Materials DB4542C - The Home Depot
Epcany Diamond Cup Wheel 125 x 22.2 mm - Diamond Cup Wheel for Concrete, Granite, Stone, Marble, Stone, Masonry, Brick, Roughcast, Waxed Concrete - Walmart.com