The Bosch IDH182-02 18V Brushless 1/4 In. and 1/2 In. Socket-Ready Impact Driver allows users to enjoy flexibility on the job, with the Socket-Ready adapter that has a 1/4 In. hex and 1/2 In. square drive in one tool. A Performance Control System gives users the option of three speed and torque settings for maximum effectiveness. The tool is powered by a hassle-free EC brushless motor. The hammer and anvil system that delivers maximum impact endurance, and the tool provides superior ergonomics, with the smallest grip diameter in the class. The impact driver kit includes two long-lasting SlimPack batteries and a charger.