DIABLO 2 in. x 16 in. x 21 in. Carbide-Tipped Rebar Demon SDS-Max 4-Cutter Hammer Bit DMAMX1400 - The Home Depot
DEWALT ELITE SERIES SDS MAX Masonry Drill Bits 5/8in X 16in X 21-1/2in DW5809 - Acme Tools
Amazon.com: 12-PCS Concrete Drill Bit Set & Masonry Drill Bit Set, Cement Drill Bits for Concrete Brick Wall, Tile Glass Ceramic, Masonry Drill Bit 1/8 to 1/2 inch Industrial Strength Carbide Cross