The Bosch IDH182B 18V Two-in-One Bit/Socket Impact Driver has both a 1/4 In. quick-change hex and a 1/2 In. square drive chuck. Equipped with Bosch's EC Brushless motor, this tool provides 2X the motor life and increased performance. It delivers a max of 1,650 In.-Lbs. of torque and up to 3,200 IPM for professional power. The Bosch-built hammer and anvil system delivers maximum impact endurance and increased tool performance in wood- and metal-fastening applications. The Bosch Performance Control System allows users to adjust tool speed and torque with a push of a button to match the tool's performance to the application at hand. The driver has a three-LED light design, an ergonomic slim-grip handle and electronic motor and cell protection. It comes with a longer belt clip for convenient storage on the jobsite. This is a bare-tool kit; the battery and charger are sold separately.