Bosch Bare-Tool HDB180B 18-Volt Lithium-Ion 3/8-Inch Cordless Hammer Drill/Driver 360 in/lbs of torque - Enough torque to drive the most common fasteners and drill bits 8" Head Length and 3.2 lbs weight - Most Compact and Lightweight desgin availabe provides least amount of use fatigue. Works with SlimPack Batteries and FatPack Batteries- ECP Technology monitors the battery to reach it maximum life. Keyless Chuck with Auto-Lock - For fast, one-handed bit changes LED Light - Ensures best visibility in dark areas