Tired of that battery-powered screwdriver being dead when you need it most? Here’s an alternative. Surprisingly powerful and stunningly lightweight, Black & Decker’s 3.6-Volt Cordless Screwdriver features the best energy-to-weight ratio and longest-lasting charge available. Just the right weight and style for assembling furniture, hanging curtains, and mounting light fixtures, this tool is powered by a lithium-ion battery that holds a charge...