The SD 4500 line of cordless screwdrivers is powerful enough for installing drywall, exterior sheathing, and metal framing. It operates at 4,200 revolutions per minute and is designed to withstand the tough demands of the jobsite. Using an 18-volt lithium-ion battery, the tool also features a vent that prevents drywall dust from blowing into the user’s face. Cost: $299 to $419.Hilti. 800-879-8000.www.us.hilti.com.