With this kit you can take it all with you. 2 x 4.0Ah battery packs gives you plenty of drill time out in the field. The 18V XR Li-Ion Brushless Compact Hammer Drill Driver Kit – 4Ah, includes a heavy duty TSTAK kit box and a multi-voltage XR charger. 13mm single sleeve chuck and spindle lock for quick and easy bit change with one hand| Two speed settings, variable speed and reverse switch for maximum control| Intelligent trigger design allows for total control of application| 15 Position adjustable torque control for consistent screw driving into a variety of materials with different screw sizes| Drill Driver and Hammer settings for multiple applications| Bright white LED with delay feature for improved visibility and flashlight functionality| Improved ergonomic design and rubber grip increases user comfort