SDS-plus Pro 4 hammer drill / 11.0 x 160 mm. Highest drilling speed is achieved by reducing friction and improving impact transmission due to the special cutting geometry on the chisel-shaped drill head. The stable and durable center point allows for pinpoint drilling. Power breakers create microcracks in the material for noticeably faster drilling progress. Enlarged reinforcement phases reduce the likelihood of snagging in reinforcement hits. The large-volume 2-spiral helix geometry with core reinforcement ensures rapid conveyance of drill dust and maximum fracture resistance. Suitable for use in concrete, masonry, natural stone, and granite.