DEWALT DW5750 3/4-Inch by 31-Inch by 36-Inch 4-Cutter Spline Shank Rotary Hammer Bit

The DW5750 : Hardened core reduces breakage. * Double flute removes material faster for more efficient drilling. * Concave head design allows dust to enter flute chambers quickly increasing bit life.

Amazon Sales Rank: #441177 in Home ImprovementBrand: DEWALTModel: DW5750ROCK CARBIDE tip maximizes carbide surface contact for longer bit life.Open head design channels dust into flutes for quicker drillingLonger helix four flute design expedites mill removal for quicker drilling.Concave head design allows dust to enter flute chambers quickly increasing bit lifeOne year warranty, one year service contract, 30 day no-risk trial