The M12™ FUEL™ 1/4 In. hex 2-speed screwdriver delivers longer productivity in a compact size. This 2-speed screwdriver provides up to 10X longer motor life, 2X more power, and 4X more runtime. 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 (sold separately) 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. The inboard fuel gauge helps you monitor the charge more accurately, so there's less downtime on the job. REDLINK Plus™ intelligence ensures maximum performance and protection from overload, overheating and over-discharge. The M12™ FUEL™ 1/4 In. hex 2-speed screwdriver's optimized design results in superior speed for greater productivity on the jobsite. Its compact size allows users to work in tight spaces. The built-in LED work light illuminates work surfaces in dark work spots.