The M18 FUEL™ 1/4" Hex Impact Driver is the most powerful tool in its class. This hex impact driver provides up to 3X longer motor life, 50% more runtime, and proprietary Milwaukee® 3-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.  Use with the REDLITHIUM™ Compact Battery Pack or Extended Capacity Battery Pack (sold separately), which deliver more work per charge and more work over pack life than the competitors, as well as best-in-class performance in extreme jobsite conditions. 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 M18 FUEL 1/4" Hex Impact Driver offers up to 55% faster application speed, and a range of 200 in-lbs to 1600 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 locations.