The Bosch GDX 18V-210 C Impact Driver/Wrench has a 2-in-1 tool holder: 1/4in internal hex and 1/2in square drive for the highest flexibility, and broadest application. The tool delivers powerful performance while preventing damage to materials, and has two default modes: selftapping screw and wood screw. The Bosch tool has more control and less broken/stripped off screwheads, worn-out threads, and damaged workpieces, by slowing down or shutting off the impact driver. Each mode is customisable via the Bosch Toolbox App. Three speed/torque settings ensure impressive control, and greater flexibility on the job. It comes with a GCY42 Bluetooth® Tool Module allowing the user to connect to the Bosch Toolbox App. Bare Unit (NO Battery or Charger supplied) in a L-BOXX Carry Case. Specification: Bit Holder: 6.35mm (1/4in)/1/2in Square. No Load Speed: 0-2,300/0-3,400/min. Impact Rate: 0-2,200/0-3,300/0-4,100/bpm. Torque Stages: 130/160/210Nm. Max. Breakaway Torque: 370Nm. Sound pressure level: 95 dB(A); Vibration emission value ah: 9.8 m/s² Weight: 1.2kg (without battery).