Milwaukee SHOCKWAVE™ Impact Duty 1/4” and 5/16” x 2-1/4” QUIK-CLEAR™ 2-in-1 Magnetic Nut Driver is the most durable and cleanable nut driver designed for maximum versatility and performance on the job site. Featuring the innovative QUIK-CLEAR™ cleaning mechanism, this nut driver allows for fast and easy removal of metal shavings from the magnet, preventing fastener head stripping and ensuring a consistent, secure grip. The 2-in-1 design combines 1/4" and 5/16" nut driver sizes on one shank, making it i for driving hex head screws with ease. Built with a powerful magnet that resists loosening over time, the nut driver provides unyielding fastener engagement. Its optimized SHOCKZONE™ shank absorbs peak torque to prevent breakage, while the heat-treated CUSTOM ALLOY76™ steel construction controls hardness and extends bit life. Two color-coded rings make size identification quick and simple. This nut driver is designed for use with impact drivers and drill drivers, delivering reliable performance for professionals. Model Number: 49-66-4542