This Bosch Professional SDS-Max-4 Hammer Drill Bit is compatible with all rotary hammers featuring an SDS max holder. It boasts a 4-cutter head for extended lifetime in concrete and ensures no jamming when drilling rebar due to its special 4-cutter design. The bit's 2-flute U-shape design contributes to a long service life and efficient dust removal. Enhanced durability is provided by its highly durable carbide makeup, which offers excellent wear resistance. This drill bit is specifically intended for use in concrete and masonry, including reinforced concrete. It features Quadro-X drilling head technology for demanding applications.