The Bosch Freak is half wrench, half driver, all impact. The GDX18V-1600 18V 1/4 in. and 1/2 in. Two-in-One Impact Driver delivers results, with the two-in-one bit/socket drive that offers a 1/4 in. quick-change hex shank holder with power groove for bits, and a 1/2 in. square drive for sockets. This innovative tool provides versatility while eliminating the use of socket adapters on a cordless drill. The impact wrench and driver��s efficient, powerful cordless motor produces 0-2800 RPM and up to 1600 In.-Lbs. of torque, while the Bosch hammer-and-anvil system provide maximum impact energy and up to 3600 impacts per minute. The variable-speed trigger provides accurate driving speed. The driver has an LED light system to illuminate the work area. The kit comes with one 18V 2 Ah SlimPack battery and a charger. Versatile Freak impact driver with 1/4 in. quick-change hex shank and 1/2 in. square drive �C for use with bits and sockets Innovative impact driver �C eliminates using socket adapters, while variable-speed trigger provides user control driving fasteners Powerful, efficient 18 Volt motor �C delivers a max of 1600 in.-Lbs. of torque, up to 3600 impacts per minute and 0-2800 RPM Hammer-and-anvil system �C designed for maximum impact energy Single-focused LED light �C located on the base of the driver for outstanding illumination Belt clip �C allows tool to hang conveniently off belt or other objects while on the job Electronic Cell and Motor Protection �C helps protect the tool and the battery from overheating and overload One 18V 2 Ah SlimPack battery and charger �C provide outstanding runtime