The 2893-22CX M18 2-tool Combo kit includes the 1/2 in. brushless hammer drill driver (2902-20) and the 1/4 in. hex compact brushless impact driver (2850-20). The M18 cordless system's patented technologies and electronics, innovative motor design, and superior ergonomics provide the most efficient blend of power, weight and performance in the industry. The M18 1/2 in. brushless hammer drill/driver is the most powerful drill in its class at 725 in-lbs of torque. The M18 1/4 in. hex compact brushless impact driver has the fastest application speed its class and delivers 1,600 in-lbs of torque. Both tools feature Milwaukee built brushless motors, REDLINK electronics, and REDLITHIUM batteries that provide more efficient power delivery, for fewer trips to the charger.