SDS max-9 Break Through Drill Bit. Ideal for drilling large and deep holes in concrete. Compatible with all SDS max rotary hammers. Vacuum-brazed and hardened 3-cutter carbide tip. The long, tapered shaft allows for breakthrough drilling of large material sections. The two-spiral U-shape ensures efficient transport of drill cuttings. Diameter: 6.5 cm, working length: 45 cm, total length: 60 cm. The SDS max-9 BreakThrough drill is designed for breakthroughs with diameters between 45 and 80 mm in concrete, masonry, and aerated concrete, for example, for securing cables and pipes outdoors. Note: Ensure that you use a rotary hammer with sufficient capacity for breakthrough drill bits to avoid overload. Pay attention to the operating instructions of the rotary hammer. It is intended for use with rotary hammers.