This M12 cordless two-tool combination kit operates on a 12V Redlithium battery of 2/4 Ah capacity. It includes a -inch hammer drill/driver with 400 in-lb of torque and a -inch hex impact driver with 1500 ft-lb torque. The kit has a CP2.0 battery, an XC4.0 battery, and a lithium-ion charger.