SDS Max Hammer Drill Kit Voltage 18 V Chuck Style SDS-Max Core Bit Capacity in Concrete 1 9/16 in Blows per Minute 0 bpm to 3 000 bpm Anti-Kickback Clutch No Modes of Operation Hammer Only Brushless Motor Yes Cordless Tool Kit Contents (1) Bare Tool (2) Batteries (1) Charger Battery Capacity 12.0 Ah 9.0 Ah Core Bit Capacity 4 in Impact Energy 5.1 ft-lb Battery Model Number 48-11-1812 48-11-1890 Battery Series M18 Charger Included Yes Charger Model Number 48-59-1808