Bosch SDS max Drill Bit DXS5060 1 1 8 Inch x 17 In Speed Clean Hollow Concrete Carbide Tipped 4 Cutter Dust Extraction Rotary Hammer Laser Level Utility Vault Maintenance: Efficiently pumping Utility Vault Maintenance: Efficiently pumping out accumulated runoff from underground utility and maintenance boxes and wall studs on commercial and residential structural framing jobsites Brick Country of Origin Germany Pro Tip: Check the hollow core opening periodically and verify your dust extractor filter auto clean pulse cycle is active to prevent fine wet concrete sludge from restricting suction during continuous deep anchor drilling 2 cm) Shank Interface Type SDS max® Heavy Duty Drive Shank Diameter 0