The Makita® 18V LXT® Lithium-Ion Cordless 1/2” Impact Wrench Kit (XWT04S1) delivers high torque impact power with a ½” square drive that will fit impact-rated socket sets. The versatile XWT04 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. Makita-Built Motor Engineered for Versatile Power The XWT04S1 features a Makita-built high torque motor that delivers 325 ft. lbs. of Max Torque, 1,600 RPM's, and 2,100 impacts per minute for a wide range of fastening tasks, including removing transmission bolts and lug nuts. The unique rubber joint shock absorbent handle helps protect the battery housing from vibration. Ergonomic Design in a Compact Size The XWT04S1 weighs just 7.5 lbs. and is 10-1/2” long with an ergonomic shape that fits like a glove for reduced operator fatigue. The XWT04S1 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 area for more efficient work. Versatile Design for a Range of Applications The XWT04S1 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. Tool Technology 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® Lithium-Ion Batteries with the star symbol on the battery indicating Star Protection inside. LXT System It's part of Makita's expanding 18V LXT® System, the world's largest cordless tool system powered by 18V lithium-ion slide-style batteries. Makita® 18V LXT® Lithium-Ion Batteries have the fastest charge times in their categories, so they spend more time working and less time sitting on the charger.