The M18™ FUEL™ 2-tool combo kit includes the M18™ FUEL™ hammer drill (2706-20) and the M18™ FUEL™ 1/4 in in hex impact Driver. The hammer drill is the most powerful 18 V cordless hammer drill on the market, delivering 1,200 in-lb of peak torque and up to 2000 rpm, providing faster drilling speed under heavy load to increase productivity. The M18™ FUEL™ 1/4 in hex impact driver is the most powerful impact driver in its class at 1800 in-lb of fastening torque. M18™ FUEL™ features the most advanced cordless technology available A POWERSTATE™ brushless motor REDLINK™ Plus™ electronic intelligence and REDLITHIUM™ battery technology, resulting in longer motor life, more runtime and more power. Enabled, allowing users to wirelessly connect to the tool with a smart phone to provide unlimited customization and control of the tool's performance. The ONE-KEY™ mobile app features predetermined set-ups for specific fasteners and materials or provides complete control Over output speed and power to customize the tool for the specific application at hand. Once the desired output performance is reached, the custom profile is then saved to the memory of the tool and the connection to the smart phone is no longer necessary. The tool's memory supports up to 4 custom profiles that can be Easily accessed with the touch of a button on the tool. Your custom profiles are also saved in the cloud so that they can be accessed at Any time.