The M18 FUEL power pack is a complete kit that contains a hammer driver, hex impact driver, extended capacity battery, compact battery pack, and a rapid charger. The 13mm hammer drill has a compact body that enables easy workability in confined areas and minimizes user fatigue. It even has an LED at the base of the tool to offer clear visibility of the task in dark spaces. The 1/4 inch hex impact driver features a compact body that makes it easier to work in tight spaces. Both of these cordless driver tools have a POWERSTATE brushless motor that offers high speeds even under heavy loads. The REDLINK PLUS intelligence incorporated into these power tools provide protection from overloading, heating, and over-discharge. The 5 Amp-hours REDLITHIUM-ION extended capacity battery has a features a superior design that enables it to work even in extremely cold temperatures. The M18 and M12 rapid charger quickly charges the batteries 40% faster than the normal charger.