The Bosch 12-Volt Max Impact Driver offers the precision of variable speed (0-2,600 RPM), a light body, and a short head length. This tool is easy to handle in tight, narrow spaces, while its three LEDs mounted around the head of the driver help in low-light settings. It comes with two lithium-ion batteries, a charger, and a carrying bag. As powerful as it is compact, the driver packs a punch with a high torque of 930 inch-pounds for coverage of 80 of impact driving applications. Compact Body for Tight Areas and Overhead Work. The impact driver features a compact build with a head length of 5.4 inches (about the length of a dollar bill). This streamlined design makes the drill small enough to fit into tight areas and narrow corners. Along with its reduced size, the driver weighs 2 pounds, making it equally well-suited for continuous overhead work.