The M12 FUEL 3/8" Impact Wrench has a Milwaukee 2-Mode DRIVE CONTROLtm for better control over the power and speed required for specific applications. The POWERSTATE Brushless Motor runs cool with no wearable components. The REDLITHIUM 2.0 Compact Battery Pack (sold seperately) delivers more power and more recharges than standard lithium-ion batteries. The onboard gauge helps you monitor the charge more accurately, so there’s less downtime on the job. REDLINK PLUS intelligence ensures optimized performance and protection from overload, overheating and over-discharge. The M12 FUEL 3/8" Impact Wrench provides up to 1,400 in-lbs of torque. Its compact weight and size drive more control and less user exertion. The built-in LED light illuminates work surfaces in dark locations.