The Makita 18V LXT? Lithium-Ion Cordless 1/2? Impact Wrench (model XWT04Z, tool only) delivers high-torque impact power with a ?? square drive that will fit impact-rated socket sets. The versatile XWT04Z packs plenty of torque for a wide range of fastening and loosening tasks, and is a powerful and convenient substitute for air powered and AC wrenches. It?s part of Makita?s expanding 18V Lithium-Ion series, the world?s largest cordless tool line-up powered by an 18V Lithium-Ion slide-style battery. Makita 18V Lithium-Ion batteries have the fastest charge times in their categories, so they spend more time working and less time sitting on the charger.For improved tool performance and extended battery life, Makita created Star Protection Computer Controls?. Star Protection is communication technology that allows the Star Protection-equipped tool and battery to exchange data in real time and monitor conditions during use to protect against overloading, over-discharging and overheating. For increased versatility, the tool can also be powered by Makita 18V LXT? and Compact Lithium-Ion batteries with the star symbol on the battery indicating Star Protection inside.Makita-Built Motor Engineered for Versatile PowerThe XWT04Z features a Makita-built high torque motor that delivers 325 ft. lbs. of Max Torque, 1,600 RPM?s, and 2,200 impacts per minute for a wide range of fastening tasks, including removing transmission bolts and lug nuts. Makita?s proprietary hammer and anvil impact mechanism are manufactured using the best raw materials with the highest quality steel and unique heat hardening process for maximum fastening and driving power. The unique rubber joint shock absorbent handle helps protect the battery housing from vibration. Ergonomic Design in a Compact SizeThe XWT04Z weighs just 7.5 lbs.(with battery, sold separately) and is 10-1/2? long with an ergonomic shape that fits like a glove for reduced operator fatigue. The XWT04Z is equipped with a large rocker switch for easier tool use ? even with gloves ? and a 1/2? square drive with detent pin is designed for quick release. A built-in L.E.D. light illuminates the work surface for more efficient work.Versatile Design for a Range of ApplicationsThe XWT04Z is a cordless option to air powered and AC impact wrenches. It is engineered for a range of fastening and loosening tasks and is perfect for steel beam construction, I-beam construction, utility pole, telephone and cell phone pole installation, overhead door installation, mudsills, automotive work, conveyor systems, HVAC, fire sprinklers, oil fields and refineries, anchors, tilt-up construction, and more. It is ideal for steel contractors, commercial contractors, automotive line assemblymen, automobile mechanics, residential contractors, HVAC contractors, and any pro tradesman requiring a best in class engineered impact wrench.