POWERSTATE Brushless motors and REDLINK PLUS Intelligence. Hammer drill provides 400 in-lbs of torque. All metal 1/2" chuck and all metal gear case. Performs 0-25500 BPM and 1550 RPM. Hex Impact Driver performs up to 1500 in-lbs of torque. 4-Mode drive control with self tapping screw mode. Up to 3600 RPMs in mode 3. 1/4" Hex chuck size. Includes: 1/2" Hammer Drill/Driver. 1/4" Hex Impact Driver. M12 REDLITHIUM XC 4.0 Extended capacity battery pack. M12 REDLITHIUM CP2.0 battery pack. M12 battery charger.