Dewalt Guaranteed Tough DW5427B25 Hammer Drill Bit, Percussion, Fractional Drill Size: 3/8 Inch, Carbide Tip, Flute Length: 4 Inch, Number of Flutes: 2, Shank Type: SDS Plus, Shank Diameter: 3/8 Inch, Shank Length: 2 Inch, Overall Length: 6 Inch For Additional Product Information, Click Here