Bosch 3/8" x 4" x 6" SDS-Plus Xtreme Carbide Rotary Hammer Drill Bit is designed to deliver exceptional durability and performance in demanding concrete drilling tasks. Featuring a full-carbide tip and advanced diffusion-bonding technology, this rotary hammer bit four times the life when drilling through concrete with rebar d to standard SDS-plus bits. The innovative diffusion bonding process uses high heat and pressure to create a solid-state weld, ensuring an incredibly strong and long-lasting bond. This bit also provides 25% more holes per battery charge thanks to its upgraded variable flute design, which transitions from four flutes to two for efficient dust removal. Its centric conical tip produces rounder holes for precise anchoring, while a wear mark helps maintain drilling accuracy throughout use. Model Number: