Milwaukee 5/16"&3/8"x6" 2in1 Nut Drvr is designed for versatility and durability on the job site. This 2-in-1 magnetic nut driver combines 5/16" and 3/8" sizes on a single shank, allowing you to quickly switch between hex head screws without changing tools. Featuring the innovative QUIK-CLEAR™ magnet, it enables fast and easy removal of metal shavings to prevent fastener head stripping, ensuring a secure grip every time. Built with heat-treated CUSTOM ALLOY76™ steel, this nut driver extended bit life and superior hardness. The SHOCK ZONE™ absorbs peak torque to prevent bit breakage, while the powerful Impact Duty magnet maintains a consistent hold without loosening over time. Two color-coded rings provide quick size identification, making this tool a reliable choice for use with impact drivers and drill drivers. Model Number: 49-66-4746