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Crafted with the highest quality chrome vanadium, this set ensures durability and longevity, standing up to the rigors of professional use and DIY projects alike.Featuring a comprehensive selection of sizes, including 6 metric (8mm, 10mm, 11mm, 12mm, 13mm, 14mm) and 6 SAE (1/4", 5/16", 3/8", 7/16", 1/2", 9/16"), this set equips you for any job that comes your way. Designed for use with impact drivers, these nut drivers feature a 1/4" hex shank for effortless attachment and removal. The precision-engineered heads ensure a snug and secure grip on fasteners, preventing slipping and stripping for seamless operation.With their compact design and convenient storage case, these nut drivers are portable and easy to transport.