The M18 FUEL 1 in. D-Handle High Torque Impact Wrench w/ ONE-KEY is the world's first cordless 1" 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 and enabling users 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, the tool provides unmatched performance. The battery-powered impact wrench provides users with cordless convenience and eliminates the need for compressors, generators, cords, and hoses. With no compressor or hose, users have greater productivity and portability with the ability to complete applications not accessible with a pneumatic unit. This reduces the users cost of ownership by lowering energy costs and eliminating routine maintenance on compressors and generators. The REDLINK PLUS Intelligence ensures users achieve 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 users with 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.