Bosch: 40mm Professional SDS-Max-4 M4 Hammer Drill Bit. 570mm Long (2608685877) Bosch SDS MAX masonry drill bits with Quadro-X drilling head with four cutter geometry for the toughest applications. Features and Benefits 4-cutter, vacuum brazing and hardening. Long lifetime/No jamming in rebar. Highly durable carbide. Good lifetime/wear resistance. Suitable for concrete and reinforced concrete and masonry. Can be used in all rotary hammers with SDS-max holder MPN: 2608685877 EAN: 3165140564298 40mm Professional SDS-Max-4 M4 Hammer Drill Bit. 570mm Long (2608685877) Attributes: Drill Bit Type: Masonry Drill Bits Drill Diameter: 40mm Length: 570mm MFR Part No.: 2608685877 Overall Length: 570mm Pack Quantity: 1 Shank Type: SDS-Max Working Length: 450mm