DEWALT DW5804-1/2" X 16" X 21-1/2", 2 Cutter SDS Max Rotary Hammer BitFeaturing a carbide tip that maximizes surface contact and a U flute to clear debris, DEWALT SDS Max Masonry Drill Bits aren't just fast, they're ultra durable. An open head design channels dust into flutes for efficient drilling, and a hardened core helps to reduce bit breakage. Includes 1X DEWALT 1 2" X 16" X 21 1 2", 2 Cutter SDS Max Rotary Hammer Bit Features DEWALT carbide tip design maximizes carbide surface contact for longer bit lifeU Flute