DeWalt DW5424B25 5/16 x 4 x 6 Rock Carbide SDS+ Hammer Bit (Bulk-25)

: Four flute design - Enlarged flutes clean debris out for fast efficient drilling. * Innovative tip design maximizes carbide surface contact for longer life. * Optimized core diameter maximizes hammer energy for greater impact power.

Amazon Sales Rank: #138647 in Home ImprovementBrand: DEWALTModel: DW5424B25Dimensions: .12 pounds Optimized core diameter maximizes hammer energy for faster drillingFour flute design cleans debris out for fast, efficient drillingPilot point tip starts on contact for greater accuracySerrated titanium carbide tip