Screws need to be driven into a variety of surfaces and, depending upon what type of job you need a screwdriver for, not all screwdrivers are one-size-fits-all for the task. Our selection of Hitachi screwdrivers includes such screwdriver designs to drill into an “average” wall for a medium duty task or for heavy-duty screwing work. For the former, the type of Hitachi screwdriver we carry is the Hitachi Nut Runner, a screwdriver design with a high torque and low speed ratio for more control for drilling wood and some medium density surfaces. For harder surfaces, a Hitachi Drywall screwdriver is more apt for the task, as this screwdriver is a high speed model designed for putting screws into pipe, lathe, and other harder surfaces.