Outstanding lifespan in reinforced concrete! It penetrates reinforced concrete with a full carbide head featuring 4 cutting edges. Drilling through reinforced concrete is a challenging task that demands a lot from the drill bits. Standard bits with two cutting edges tend to get stuck in the rebar and break. The solid carbide head on the EXPERT SDS plus-7X is an advanced 4-cutter made from a single piece of the hardest metal: it doesn’t jam and shows no weakness when hammer drilling. Ideal for construction professionals who regularly drill into concrete and reinforced concrete, such as for drilling and installations. The Bosch EXPERT SDS plus-7X hammer drill bit offers unmatched performance, reliability, and durability. It is the expert accessory for SDS plus rotary hammers. An exceptionally durable drill bit with Bosch Carbide Technology.