Daredevil, Nail Killer, 7/8" x 17", Auger Bit, Easy In Wood, Tough On Nails, Dual Cutting Edges Deliver Easier Nail Cutting & Balanced Drilling, Open Faced Flute Offers Improved Chip Removal, Reinforced Tip Withstands Repeated Nail Hits, Reamer Edge Provides Improved Entry & Exit Hole Quality, 9X Life With Nail Hits.