At Hilmor®, we've taken the nut driver up a notch. From a magnetic tip to securely hold the fastener in place to a deep shaft designed to accommodate long bolts. We've also added some twists you'll like such as a slip-resistant grip, wrench flats for more torque and a color-coded insert for easy size identification. We even gave it an extra-durable design - to outlast the elements. Simply put, it's ready to conquer when you are. Available in 1/4 in and 5/16 in sizes or as a 2-piece set.