M18 2-tool combo kit, includes 1/2" compact brushless drill driver & 1/4" hex compact brushless impact driver, patented technologies & electronics, innovative motor design & superior ergonomics provide the most efficient blend of power, weight & performance, fastest application speed its class & delivers 1,600 in/lb torque, both tools feature milwaukee built brushless motors, redlink electronics & redlithium batteries that provide more efficient power delivery, for fewer trips to the charger.