Dewalt DW5471 5/8 Inch X 10 Inch High Impact 4 Flute SDS-Plus Concrete Masonry Hammer Drill Bit

With A High-Impact, Carbide Tip And Elongated 4-Flute Design, Dewalt High Impact Carbide SDS Plus Masonry Drill Bits Deliver Extreme Durability And Fast Drilling. An Open-Head Design Enables Quick Material Removal While Working.