【Wide Compatibility】Suitable for car maintenance, engines, motorcycles, computers, toys, household appliances and furniture assembly. This 4" allen key bits (metric and imperial) comprehensively covers most hex screw sizes encountered in repair work. Compatible with electric screwdrivers, manual screwdrivers, drills and other tools
【Made from Durable S2 Tool Steel】Allen key drill bit set crafted from high-quality S2 alloy steel with CNC precision-machined tips and professionally heat-treated to a hardness of HRC 58–62. Offers excellent torsional strength and wear resistance, effectively preventing bit twisting or breakage under high-pressure tasks and extending service life by up to 10 times
【Strong Magnetic Head】Features a universal 1/4-inch shank for quick insertion into your electric screwdriver or ratchet wrench. The powerful magnetic tip securely holds screws in place, preventing them from falling during rapid starts or when working overhead or at awkward angles. Greatly improves efficiency and safety during installation, repair or fastening tasks
【Complete Dual Metric & Imperial Set】The hex drill bit set includes 10 metric (MM) and 10 imperial (INCH) commonly used sizes, perfectly meeting the needs of disassembly and installation for screws of different standards. Whether for imported equipment, vehicle maintenance or household appliances, this single set handles it all – no more searching for specific sizes
【Fits Various Screw Sizes】Designed for over 95% of hex screw applications on the market. Ensures a tight, gap-free fit within the screw head to effectively transfer torque, fundamentally preventing screw stripping or rounding caused by size mismatch and keeping your screws in perfect condition
【Quality Service】Each impact allen key set comes with a sturdy plastic case for easy portability and storage. If you encounter any quality issues, please contact us for a replacement – we will resolve the matter promptly.