Our M18 FUEL™ 2-Tool Combo Kit contains the Most Powerful Drill, including AUTOSTOP™ Control Mode for enhanced safety and the redesigned second generation M18 FUEL™ SURGE™ ¼” Hex Hydraulic Driver. Our M18 FUEL™ ½” Hammer Drill Driver is the Industry's Most Powerful Hammer Drill, delivering the capability to drill the largest holes at high speed into the densest materials. At only 6.9” in length, this is the most compact cordless drill in its 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.