The Bosch Exact-Fit ™ brushless impact driver is a lightweight, highly efficient 1/4 "hex driver. Small but powerful, it has a head length of 5.5 inches and weighs only 1.6 lbs. It is a powerful machine, with an optimized percussion system. It also has the Bosch performance control system, which provides two adjustment speeds, one for high speed and the other for high torque. It provides the nominal RPM values between 0 and 1200 and 0 and 2600 RPM, and an empty hit rate per minute between 0 and 2700 and 0 and 3100 BPM. It also delivers up to 975 in-lbs of torque, perfect for series screw-in tasks, and provides approximately 85 percent of jobsite fastening tasks.Compact and light – just a 5.5 In. head-length and only 1.6 Lbs. in weightEC Brushless motor – allows for greater motor efficiencyEffective performance – completes 85 percent of most fastening applicationsPro driving performance – delivers a max torque of 975 In.-Lbs. outputFast driving – no-load ratings of 0-1,200 and 0-2,600 RPMOptimized impact system – no-load impact per minute ratings of 0-2,700 and 0-3,100Performance control system – provides two speed settingsThree LED lights – offers improved illumination in dark work spacesRugged belt clip – for quick and easy storage