The Milwaukee M18 FUEL ONE-KEY 18-Volt Lithium-Ion Brushless Cordless 1/2 in. Impact Wrench w/Friction Ring Kit w/One 5.0Ah Battery (2863-21P) provides the most powerful, most compact, and the most repeatable impact wrench in the industry. The POWERSTATE™ Brushless Motor delivers up to 1,000 ft-lbs of fastening torque and 1400 ft-lbs of nut-busting torque, providing a cordless solution to eliminate the need for corded impact wrenches. This cordless high torque impact wrench is the industry's most compact at 8.39 in. length for more access in tight spaces. REDLINK™ PLUS intelligence prevents damage to the tool and battery due to overloading or overheating. REDLITHIUM™ batteries deliver more work per charge and more work over the life of the battery. Equipped with ONE-KEY™, this cordless impact wrench wirelessly connects to a smartphone to customize, track, and manage the tool's performance and location. Users looking for a targeted torque range now have solution that will get users close to their targeted torque value, reducing the likelihood of significant under or over torque. Users will experience less rework, less damage, and increased productivity that will get users closer to their torque target and will finish with a calibrated torque device to reach their targeted torque value.