General description These U-shaped screwdriver bits are crafted from high-quality S2 alloy steel, known for its exceptional hardness and durability. The set includes five magnetic bits of different sizes, designed to securely attach to screwdrivers, making them ideal for various applications such as electrical work and mechanical repairs. Technical specifications Material: S2 Alloy Steel Head Shape: U-shaped Handle: Hex Shank Handle Size: 6.35mm / 1/4" Length: 50mm / 2 inches Sizes included: U4, U5, U6, U7, U8 Quantity: 5 pieces Magnetic: Yes Compatibility and accessories Compatible with electric screwdrivers, hand screwdrivers, drills, and pneumatic drilling tools. Usage Ideal for electricians and mechanical repairs. Convenient for use with electronic devices.