The M12™ FUEL™ 1/4 in hex impact driver kit delivers maximum performance in a compact size. This hex impact driver provides upto 3x longer motor life, upto 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. The REDLITHIUM™ 2.0 compact battery pack delivers upto 20PERC more power and 2x more recharges than standard Li-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.