The DEWALT DCF922P2T XR Brushless 1/2in Impact Wrench is supplied with: 2 x 18V 5.0Ah Li-ion Batteries. 1 x Charger. 1 x TSTAK(tm) Kitbox. 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 .