Outstanding lifespan in reinforced concrete. The drill penetrates reinforced concrete using a 4-cutter solid carbide head. Drilling through reinforced concrete is a challenging task that demands a lot from the drills. Standard drills 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 does not jam and shows no weakness during 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 offers unparalleled performance, reliability, and durability. It is the expert accessory for SDS plus rotary hammers. Exceptionally durable drill with Bosch Carbide Technology.