The Klein Tools 1/4 in. Nut Driver with 3 in. Shank is designed to fit over long bolts and studs. It is plated with corrosion-resistant chrome for durability and features a full-hollow shaft that works on stacked circuit boards and other long-bolt applications. Its internal flanges provide a twist-resistant shaft anchor, and the handle end is color coded for easy identification. The nut driver meets or exceeds the pertinent ASME/ANSI specifications.