The M18 FUEL 2-Tool Combo Kit has the Most Powerful Drill, including Autostop control mode for enhanced safety, and the Fastest Driving Impact Driver. Includes the M18 FUEL 1/2-in. Hammer Drill and M18 FUEL 1/4-in. Hex Impact Driver. The M18 FUEL 1/2-in. Drill Driver is the Industry’s Most Powerful Drill, Most Compact solution in class and features AutoStop Control Mode for Enhanced Safety. The POWERSTATE Brushless motor delivers the most power under load to complete 2-9/16-in. Self-Feed holes in dense materials for increased productivity and capability in high speed. At only 6.9-in. in length, this is the most compact drill in class for the best access and maneuverability in tight spaces. The AutoStop Control Mode offers enhanced safety for the operator by preventing over-rotation in a bind-up with the best reaction time in the industry.