The MILWAUKEE® M18 FUEL™ 1'' D-Handle High Torque Impact Wrench w/ ONE-KEY™ is the world's first cordless 1 in D-Handle High Torque Impact Wrench. The POWERSTATE™ Brushless Motor delivers up to 2,000 ft-lbs of nut-busting torque and 1,900 ft-lbs of fastening torque, making this the world's most powerful cordless impact wrench, able to complete the most demanding applications. With the runtime to install up to 200 1-1/4'' bolts on a single HIGH OUTPUT™ HD12.0Ah battery, this tool provides unmatched performance. The battery-powered impact wrench offers cordless convenience and eliminates the need for compressors, generators, cords, and hoses. Achieve greater productivity and portability without the need for compressors or hoses to complete applications not accessible with pneumatic units, reducing the cost of ownership by lowering energy costs and eliminating maintenance on compressors and generators. The REDLINK PLUS™ Intelligence ensures maximum performance and protects the High Torque Impact Wrench against overloads, over-heating, and over-discharge. M18™ REDLITHIUM™ Battery Packs are compatible with all M18™ tools, providing more work per charge and more work over the life of the pack. A patented battery isolation system manages high frequency vibrations, enabling battery movement that prevents damage and ensures a constant connection between the battery and tool when in use. The 4-Mode DRIVE CONTROL™ provides greater control over the output speed and power of the High Torque Impact Wrench. The ONE-KEY™ Technology allows for customization, tracking, and management of the impact wrench with the ability to set a repeatable torque output for maximum control.