The crosswise installation of precisely milled cutting inserts ensures effective hole centering and dynamic, aggressive drilling and crushing of the material. The spiral significantly accelerates the removal of broken material outward, thereby reducing the time required to create a hole. The innovative design provides higher work efficiency with less wear on the drill. Diameter: 38 mm. Length: 800 mm. Attachment: SDS max. Tip: 4 plates, cross, Quattro. Suitable for: concrete, stone, brick, hard glaze, ceramics, terracotta.