SDS-plus Pro 4 / 25.0 x 250 mm. Maximum drilling speed due to reduced friction and improved impact transmission thanks to a special cutting geometry on the chisel-shaped drill head. Stable and durable centering point for precise spot drilling. Performance breakers create micro-cracks in the material for noticeably faster drilling progress. Enlarged reinforcement phases reduce the likelihood of jamming when hitting reinforcement. Large-volume 2-spiral helix geometry with core reinforcement for rapid production of drill dust and maximum breaking strength. Suitable for use in concrete, masonry, natural stone, and granite.