M18 FUEL ONE-KEY 18-Volt Lithium-Ion Brushless Cordless 1/4 in. Hex Impact Driver (Tool-Only)The Milwaukee M18 FUEL 1 4 in. Impact Driver with ONE KEY is the Fastest, Most Compact and Most Powerful tool in its class. The POWERSTATE Brushless motor produces up to 2,000 in. lbs. of torque, delivering Up To 30% Faster Driving Speed, increasing the impact drill's productivity for the most demanding fasteners on the job. At only 4. 59 in. L, this is the Most Compact impact driver in its class, giving users better access in tight spaces. REDLINK