The Bosch GDX 18V-180 Cordless Impact Driver/Wrench allows fast and efficient working progress, thanks to high speed and torque. It features a 2-in-1 bit holder, allowing 1/4in internal hex and 1/2in square drives. The ergonomic design enables easy handling and its soft grip handle increases comfort during use. Specification: Bit Holder: 1/4in Internal Hex and 1/2in External Square.No Load Speed: 0-2,800/min.Impact Rate: 0-3,600/bpm.Sound Pressure Level: 95 dB(A).Max. Torque: 180Nm.This Bosch GDX 18V-180 Cordless Impact Driver/Wrench is supplied as a Bare Unit - No Battery or Charger.