The SHOCKWAVE™ QUIK-CLEAR 2-in-1 Magnetic Nut Drivers features a durable QUIK-CLEAR Magnet and 2-in-1 size versatility. The QUIK-CLEAR cleaning mechanism allows for fast and easy removal of metal shavings from the magnet, to prevent fastener head stripping. The 2-in-1 nut driver design offers 5/16" and 3/8" nut driver sizes on one shank to allow for maximum versatility when driving hex head screws on the jobsite. The QUIK-CLEAR 2-in-1 Magnetic Nut Drivers feature a powerful Impact Duty magnet that prevents it from loosening over time to enable a consistent secure grip and unyielding fastener engagement. The optimised Shockzone absorbs peak torque and prevents bit breakage. Made from heat treated CUSTOM ALLOY76™ steel to control hardness and extend bit life. The nut drivers feature two color-coded rings for quick and easy size identification. Designed for use with impact drivers and drill drivers.