[ Material] These u shaped bits are crafted from premium s2 alloy steel for durability and high hardness in hardware applications. [Wide Application] Suitable for use with electric screwdrivers, hand screwdrivers, electric drills, and more, making it ideal for electricians and mechanic repair work. [Strong Magnetic] The magnetic feature ensures a secure grip on screwdrivers, preventing slipping and enhancing efficiency. [Variety of Sizes] With 5 different u shaped heads included, this set offers versatility to meet various requirements at a budget friendly price. [Precise Operation] Perfect for working on electronic devices, these bits are designed to tackle intricate tasks with ease, enhancing accuracy and productivity., Manufacturer: ACOGEDO