6-Piece Magnetic Nut Driver Set with 1/4-Inch Hex Shank for Impact Drills, Includes SAE Sizes 1/4-Inch and 5/16-Inch, Features Durable Chrome Vanadium Steel Construction with Black Manganese Phosphate Coating for Enhanced Wear Resistance and Corrosion Protection, Ideal for Professional and DIY Fastening Applications

Longer Size: 6PCS SAE impact nut driver set includes 3pcs 1/4" and 3pcs 5/16" nut drivers.The 6-inch (150 mm) long nut driver is convenient for working in narrow spaces and hard-to-reach areas

High Durability: This nut driver bit set is crafted from Cr-V steel with Black Phosphate Coating for durability.This material ensures longer service-life, higher seismic resistance, strong oxidation and corrosion resistance

Upgrade Strong Magnets: Each impact nut driver set contains a high-strength magnet.The magnetic feature ensures secure and effortless installation or removal of hexagonal nuts and fasteners, enhancing your work efficiency and ease of use

Quick Change Nut Driver: The 1/4" Quick-Change Hex Shank allows for swift transitions between tasks, saving you time and providing convenience during projects.Each impact drill bit tool is laser-etched for easy identification

Widely Used: The impact nut driver set magnetic features a universal 1/4" hex shank for easy attachment to a variety of tools, including drills, electric screwdrivers, socket wrenches, pneumatic impact wrenches, cordless drills, screw guns and hex socket ratchets