SDS-max Pro 4 / 22 x 320 mm. Unmatched destructive power with an extremely robust and aggressive solid carbide cutting edge. Consistently long service life is ensured by a short head with large-volume dust channels for friction-free removal of drill dust, resulting in minimal heat generation. The highest drilling speed is achieved with angled secondary cutting edges for aggressive drilling progress. Optimum centering is provided by a drill-active centering tip for precise guidance when drilling in concrete and reinforced concrete. Accurate drill hole diameters are guaranteed by an innovative wear mark that serves as an indicator for dimensional accuracy. Vibration control is optimized for ideal performance under the toughest requirements on the construction site. Suitable for use in concrete, masonry, and natural stone.