The DEWALT DCF900N XR Brushless 1/2in High Torque Impact Wrench has an efficient brushless motor delivers high performance, extends tool life and allows for much shorter design. Its variable trigger provides complete control over all applications.Up to 1396Nm of fastening torque ensures removal of the tightest bolts compared to 950Nm with the previous DCF899 wrenchThe compact design enables easy access in confined areas. Fitted with a comfortable rubber XR grip and switch for greater application comfort and maximum control.An ultra-bright white LED work light with a delay feature improves visibility. Brightness control allows dimming or turn off to suit the working conditions.FeaturesUp to 1396Nm of fastening torque ensures removal of the tightest boltsUp to 1898Nm of "breakaway" torque ensures removal of the tightest bolts4 Mode membrane switch with Precision Wrench allows for better application control1/2� square drive with hog ring allows quick socket changesVariable trigger allows complete control over all applicationsEfficient brushless motor delivers high performance, extends tool life and allows for much shorter designBright white LED with delay feature for improved visibility and functionality. Now with brightness control so you can dim or turn off the light to suit the environmentLatest generation 18V BRUSHLESS XR Li-Ion High Torque WrenchComfortable rubber XR grip and switch for greater application comfort and maximum controlPowerful fan cooled motor delivers up to 1396Nm of torque and 1800 impacts per minute for heavy duty fastening applicationsDewalt DCBP518 Powerstack Features Higher max watts out, so there's a greater range of applicationsFaster speed of application, giving you increased output and more jobs doneImproved thermal performance. Pouch cells run cooler in application and dissipate heat better than cylindrical cellsCreate less heat resistance which means fewer hot pack shutdowns mea.