The X-design hammer drill head enables excellent work progress thanks to its high drilling performance and optimised drill dust removal. Improved drill hole quality is achieved through reduced vibrations. The 4-cutter head is equipped with high-quality tungsten carbide inserts, which enable up to 30% longer service life of the drill bit with fully embedded inserts on both sides. It features a vacuum brazing/hardening process and an EN heavy duty shank for maximum durability. Diameter: 40 mm. Overall length: 920 mm. Working sleeve length: 800 mm. Insertion end: SDS-max. Drill head: multi-bladed. Test mark masonry drill e.V.: Yes.