The 2798-22CT M18 two-tool combo kit includes the 2701-20 1/2 in compact brushless drill driver and the 2750-20 1/4 in hex brushless impact driver. 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 compact brushless drill/driver is the most compact 18 V drill on the market and delivers over 50% longer runtime than drills with brushed motors. The M18 1/4 in hex brushless impact driver is the most compact impact driver in its class and delivers over 50% longer runtime than impact drivers with brushed motors. Both tools feature Milwaukee built brushless motors, REDLINK electronics and REDLITHIUM batteries that provide more efficient power delivery, for fewer trips to the charger. This kit includes (2) REDLITHIUM 2.0 battery, which is compact and lightweight, ideal for fastening applications.