Cordless Combination Kit Voltage 20 V 60 V Chuck Style SDS-Max Solid Bit Optimal Drilling Range in Concrete 5/8 in to 1 1/4 in Blows per Minute 1 450 to 2 900 bpm Anti-Kickback Clutch Yes Modes of Operation Hammer Only Brushless Motor Yes Cordless Tool Kit Contents (1) Charger (2) Bare Tools (2) Batteries Battery Capacity 9.0 Ah Core Bit Capacity 4 in Impact Energy 7.7 ft-lb Auxiliary Handle Positions Continuous Battery Model Number DCB609 Battery Series Flexvolt