Cordless screwdriver features a 7.2V integrated lithium ion battery that holds a charge 6 times longer than Ni-Cd. Powerful 7.2V motor delivers 300 RPM for optimum speed and torque. Can drive up to 3" screws. Precision variable-speed trigger with reverse for superior control when starting, driving, and removing fasteners. Lightweight (under 5" O.L.), compact size gets in tight spaces other drivers can't. Ergonomicallyoptimized grip with T-handle design for balanced comfort and control. Motor brake provides control and reduces screw stripping. Automatic collet lock for hand tightening when needed. High-powered, rare earth magnetic bit holder holds standard 1/4" hex shank bits securely.