MILWAUKEE® SHOCKWAVE Impact Duty™ Magnetic Nut Drivers are engineered with the most durable magnet for a secure grip and unyielding bit engagement, lasting the life of the nut driver. The magnetic nut driver securely holds fasteners for easy placement in the application. CUSTOM ALLOY76™ heat-treated steel provides controlled hardness and extended bit life. The optimized SHOCKZONE™ absorbs peak torque and prevents breaking. Our magnetic nut drivers feature a chamfered edge to maximize engagement to the fastener, while the improved hex geometry provides the best fit and reduces stripping during use. The nut drivers also have color-coded bands for easy size identification. Designed for use with impact drivers and drills.