The hammer drill bit from kwb is a sophisticated tool that has been specially designed for drilling in hard materials such as concrete, brick and stone. With a diameter of 4 mm and an overall length of 110 mm, this drill bit offers an optimum combination of precision and efficiency. The SDS-Plus shank enables a simple and secure connection with various drilling machines. The self-centring drill point ensures precise drilling, while the multiple helix optimises the drill dust transport and minimises wall friction and heat generation. In addition, the drill bit is vibration-optimised, which increases comfort and control during drilling. Certified by the German Prüfgemeinschaft Mauerbohrer (PGM) and compliant with the requirements of the German Institute for Building Technology, this hammer drill bit fulfils the highest quality standards. Self-centring drill point for precise drilling. High-temperature brazed for increased durability. Vibration-optimised for improved comfort when working. Certified by the German Prüfgemeinschaft Mauerbohrer (PGM). Suitable for a wide range of materials, including concrete and brick.