Hyper Tough AU85039K Hex Shank Magnetic Nut Driver Bits

The drivers include 3 sizes: 1/4-inch, 3/8-inch and 5/16-inch are an excellent choice for your drill or impact driver. Can also hold screwdriver bits. These drivers are made of high-quality chrome vanadium steel for a long and durable life and are size stamped for easy identification. With the hex shank they hold firmly in place in the chuck and can quickly be removed or changed out. The strong magnet will firmly hold sheet metal screws or other metals in place while being attached. This allows for more control and the ability to only use one hand for installation.