DEWALT DW5758 1-1/8-Inch by 11-Inch by 16-Inch 4 Cutter Spline Shank Rotary Hammer Bit

DEWALT DW5758 1-1/8-Inch by 11-Inch by 16-Inch 4 Cutter Spline Shank Rotary Hammer Bit Rock Carbide tip maximizes carbide surface contact for longer life. Open head design channels more dust out. U-flute design maximizes bit strength. Longer helix increased flute travel expedites dust removal., Brand DEWALTROCK CARBIDE tip maximizes carbide surface contact for longer bit life.Open head design channels dust into flutes for quicker drillingU-Flute cleans debris out for fast, efficient drillingLonger helix four flute design expedites mill removal for quicker drilling.