Bosch 1/2" x 16" x 18" SDS-plus Xtreme Carbide Rotary Hammer Drill Bit is engineered for exceptional durability and performance in concrete drilling. This rotary hammer bit features a full-carbide tip design combined with proprietary diffusion-bonding technology, delivering four times the life when drilling through concrete with rebar d to standard SDS-plus bits. The advanced diffusion bonding uses high-heat, high-pressure solid-state welding to create an incredibly strong bond that enhances bit longevity. Designed with an upgraded variable flute system, the bit transitions from four flutes to two for efficient dust removal, enabling 25% more holes per battery charge. Its centric conical tip ensures rounder holes for precise anchoring, while a wear mark helps maintain drilling accuracy, making it a reliable choice for demanding construction tasks.