SHALL 29PCS 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 Storage Bag

Value for Money Set: SHALL 29 PCS magnetic nut driver set contains 11 PCS metric magnetic nut driver, 11 PCS SAE magnetic nut driver, 3 PCS driver socket adaptors, 3 PCS 1/4'' quick release magnetic extension rod and 1 PC 1/4'' bit holder. Top-Quality CRV: All impact nut driver set, socket adapters, bit holder and drill extension rods are constructed of Cr-V steel for longer service-life and higher shock-resistance; The electrophoretic treatment of the surface makes it have stronger oxidation and corrosion resistance. Easier to Distinguish: The red and blue codes specially designed to quickly distinguish between metric and SAE, as well as the clear laser-etched size, allow users to find the correct-size nut drivers faster; Red for metric and Blue for SAE. 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. Universal Fit: 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