With DEWALT Elite Series SDS-Plus Drill Bits you can drill through hard concrete and withstand rebar strikes with up to 2x the life of some competing brands. In addition, with its proprietary circulating cutting carbide design, select sizes offer longer life than previous DEWALT designs. The full range of bits are made in Germany with global materials and are ideal for anchor installation. Strengthened through IRON BLAST TECHNOLOGY a process that helps resist fatigue and results in extreme durability.