The DEWALT DCF922 XR Impact Wrench has an efficient brushless motor and 1/2in square drive with detent pin for quick socket changes. Its variable speed trigger provides complete control over all applications and tactile 4-mode select feature, a selection of different modes and speed settings for ultimate performance. Mode 1 Low Speed: tool operates at a reduced speed and outputs approximately 160Nm, reverse tool operates at normal speed. Mode 2 Mid Speed: tool operates at a reduced speed and outputs approximately 400Nm, reverse tool operates at normal speed. Mode 3 High Speed: tool operates at normal speed, reverse tool operates at normal speed. Mode 4 Precision Wrench: tool pauses before impacting to help prevent over-tightening, reverse tool lowers speed when fastening is loose to help prevent run-off. Its ultra-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. Specification: Bit Holder: 1/2in Detent PinNo Load Speed: 2,500/min. Impact Rate: 3,600/bpmMax. Fastening Torque: 406NmNut Busting Torque: 610NmWeight: 1.1kg (without battery)The DEWALT DCF922N XR Brushless 1/2in Impact Wrench is supplied as a Bare Unit - No Battery or Charger. Dewalt DCF922N XR BL 1/2in Impact Wrench 18V Bare Unit in Yellow