Bosch Bare-Tool IWH181B 18-Volt Lithium-Ion 3/8-Inch Square Drive Impact Wrench 25-Percent lighter than the competition Most compact - 23-Percent shorter than competitors - Only 6-Inch long, the most compact design in the market Faster and more torque - 2,800 RPM and 1,500 Inch/lbs of torque Highest BPM in category - over 3,200 BPM Led light - for use in dark areas