MilwaukPOWERSTATE™ Brushless MotorMode 1 RPMs: 0-1,250; Mode 2 RPMs: 0-1,950; Mode 3 RPMs: 0-2,575; Mode 4 RPMs: 0-2,575Mode 1 IPMs: 0-900; Mode 2 IPMs: 0-2,100; Mode 3 IPMs: 0-3,100; Mode 4 IPMs: 0-3,100Shortest length (6") impact wrench in its class, allowing access to the tightest spacesUp to 650 ft-lbs of torque, weighing only 5.1 lbs with a 5.0Ah batteryThree LEDs surround the anvil to increase visibility during use