From Klein Tools, the 9-piece Insulated Nut Driver Set with 6" long shafts have layers of insulation to provide protection against electric shock. This set has a full hollow shaft that allows for work on long bolt applications, allowing full engagement with the nut to hold fasteners securely in place. It also provides additional distance from energized sources, especially when working on stepped blocks within panel boxes. For tool protection, each kit includes a custom Cordura nylon carrying case that has an interior document pocket for maximum organization.