DEWALT DW5706 Rockwell 1/2 Inch Bit Diameter 2-Cutter Spline Shank Drill Bit

With a carbide tip to extend bit life and a U-flute to clean debris while you work, DEWALT Spline Masonry Drill bits deliver quick, efficient drilling. A hardened core helps to reduce bit breakage, and an open-head design channels dust into flutes for fast drilling.