Bosch GDS 18V-450 HC Professional Impact Wrench with a 1/2in square bit holder. Delivers powerful performance whilst preventing damage to materials. Two default modes on the user interface, selftapping screw (A) and wood screw (B) , mean more control and less broken or 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. Comes with a status indicator, LED light, and belt clip for greater convenience. Ideal for metal workshops/locksmiths, industrial assembly, framing and vehicle maintenance using metal bolts/nuts from M10-M20. Comes as a Bare Unit, NO battery or charger in a cardboard box. Compatible with all Bosch Professional 18V batteries, including ProCORE18V batteries and chargers (Professional 18V System) Also compatible with AMPShare, the multi-brand battery alliance. Specifications: Tool Holder: 1/2in square. No Load Speed: 0-1, 000/0-1, 500/0-2, 300/min. Impact Rate: 0-1, 900/0-2, 500/0-3, 300/bpm. Max. Torque: 250/330/450Nm. Max. Breakaway Torque: 800Nm. Bolt Size: M10 - M20. Weight: 1.6kg excl. battery.