The M12 FUEL™ 1/4" Hex Impact Driver delivers maximum performance in a compact size. This hex impact driver provides up to 3X longer motor life, up to 2X more runtime, and proprietary Milwaukee® 2-Mode DRIVE CONTROL™ for better control over the power and speed required for specific applications. The POWERSTATE™ Brushless Motor outperforms all leading competitors with constant power output, yet runs cooler with no wearable components.  Sold separately, the REDLITHIUM™ 2.0 Compact Battery Pack delivers up to 20% more power and 2X more recharges than standard lithium-ion batteries, as well as best-in-class performance in extreme jobsite conditions. Its reduced size and weight cut down on user fatigue, while the onboard fuel 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 1/4" Hex Impact Driver offers fastening speed comparable to 18-volt impact drivers, and 1200 in-lbs of torque. Its compact size and weight allow access to tighter areas and reduce user fatigue. The built-in LED light illuminates work surfaces in dark work spots.