Ultra compact 117.8 mm short body, our new impact driver with a newly developed compact motor offers innovative usability. A new "Self-Drilling screw mode" which limits the risk of stripping the thread on fasteners or materials during screwing-in by automatically switching the rotation speed from high speed to low speed. The dual voltage specification allows to use 14.4 V and 18 V battery for more flexibility. Less fatigue: optimum center-balanced ergonomics with less fatigue caused by long-time usage. Premium design: high-quality "Carbon Fiber Look" textured finish.