The M18™ FUEL™ 1/4 in hex impact driver is the fastest, most compact and most powerful tool in its class. The POWERSTATE™ brushless motor delivers upto 2000 in-lb of torque and upto 30% faster driving speed, increasing user productivity for the most demanding fasteners on the job. At only 4.59 in L, this is the most compact tool in its class, allowing users to have more access in tight spaces. The REDLINK™ Plus™ intelligence ensures maximum performance and protects from overloads, heating and or over-discharge. The REDLITHIUM™ battery pack delivers more work per charge and more work over the life of the pack when compared to competitors. The 4-Mode DRIVE CONTROL™ provides greater control over output speed and power, for greater versatility. The self-tapping screw mode provides faster installation time by reducing stripping of fasteners.