WORKPRO 27 PCS Magnetic Nut Driver Set, Impact Drill Driver Bit 1/4" Hex Shank, SAE & Metric Cr-V Steel Power Nut Drivers With Quick-release Extensions, Impact Socket Adapters, Bit Holder And Toolbox

One set is enough for all Premium Quality: All impact nut driver set, socket adapters, bit holder and drill extension rods are made of Cr-V steel, longer service-life, higher shock-resistance. Easier to Distinguish: The red and blue codes specially designed to quickly distinguish between SAE and metric, as well as the clear laser-etched size, allow users to find the correct-size nut drivers faster; Red for SAE and Blue for metric Upgrade Strong Magnets: Each nut driver has a reinforced rubidium magnet with its deep enough interior to securely lock and hold the bits while tightening or loosening nuts or bolts. The nut setter master set owns a universal 1/4 hex shank for quick chucks and any drill or driver, electric screwdriver, socket wrench, pneumatic impact wrench, cordless electric drill, screw gun, etc Easy Storage: Comes with a convenient storage case for easy organization and transport, keeping your tools neatly arranged and readily accessible