The Worx cordless impact wrench WX279.9 offers up to 25% more power and up to 50% longer runtime than comparable conventional cordless impact wrenches, thanks to its brushless motor. Additionally, the impact wrench features an LED light for better visibility in dark work areas, a variable 3-speed gearbox, and a battery level indicator. Thanks to Worx Powershare, the powerful 20V battery is compatible with other 20V Worx devices. The battery is not included in the delivery.