With the Dewalt DT9547-QZ SDS-Plus Extreme 2 hammer drill bit, you drill deep penetrations through thick walls, concrete, and masonry with complete confidence. Thanks to an overall length of 1000 mm and an effective working length of 950 mm, you easily pass through deep structures to install cables and pipes. The solid two-cutter carbide tip delivers fast penetration and reliable power transmission through the SDS-Plus shank. At the same time, the optimized flute clears drilling dust rapidly, preventing jams and ensuring smooth, steady progress throughout demanding tasks.