Bosch Bare-Tool 25618B 18-Volt Lithium-Ion 1/4-Inch Hex Impact Driver Compact Impactor design for increased maneuverability in tight spaces and extended comfort Electronic Cell Protection (ECP) unique battery pack design and customized electronics to deliver optimal battery life and performance Built-in LED light - great for dark corners or enclosed areas Designed hammer and anvil system produces 1,500 In./Lbs. of dynamic torque Battery and charger sold separately 25-Percent lighter than the competition Most compact - 25-Percent shorter than the competition. The most compact design - Only 5-7/10-Inch Long 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