The Bosch Freak combines an impact wrench with an impact driver for unparalleled versatility. This 2-in-1 impact driver set for GDX18V-1800C bits/sockets is equipped with a 1/4" quick-change hex shank holder with power groove for bits, and a 1/2" square drive for sockets. The set also includes a durable and lightweight CORE18V battery with next-generation 21700 cell technology for optimal performance throughout its use. The brushless, high-performance brushless EC motor of the cordless impact driver can produce 1800 in/lb of torque, while Bosch's hammer-and-anvil system provides up to 4200 impacts per minutes. In addition, the variable-speed trigger provides accurate driving speed. The driver comes with an LED light system to illuminate darker work areas.