Milwaukee SHOCKWAVE™ Impact Duty™ 5/16" x 2-9/16" Magnetic Nut Driver is engineered for maximum durability and performance. Made from Alloy 76™ Steel and heat treated for enhanced strength, this nut driver features a powerful magnetic grip that ensures stronger bit engagement, making your work more efficient. The color-coded rings allow for quick and easy size identification, while the chamfered edge provides maximum screw-head engagement. Its hex geometry a secure fit that helps reduce stripping, making this tool reliable for tough jobs. Model Number: 49-66-4533