Elite Series Dw5539 Hammer Drill Bit, 3/16 In Dia, 4-1/2 In Oal, 4-flute, 25/64 In Dia Shank, Sds Plus Shank

With up to twice the life of BOSCH® you can drill through hard concrete and is designed to resist breakage when striking rebar with the DEWALT® Elite Series™ SDS Plus drill Bit. In addition, with its proprietary circulating cutting carbide design. Strengthened through Iron Blast Technology™ a process that helps resist fatigue and results in extreme durability.