Security Screw Bit Set - 5 Pcs Alloy Steel Hex Shank U-Shaped Magnatic Screwdriver Bits - 1/4" (50mm) Length

High-quality Materials:These U-shaped bits are made of high quality alloy steel material, which is commonly used material high hardness in hardware. Fasten:The magnetic heads of the bits can be firmly fixed on the screwdriver, so you can use it securely, don't worry about them slipping from the screwdriver. Application:It is useful to operate electronic device, perfect for electrician, mechanic repair work. 5 Sizes:The set included 5 different sizes U-shaped heads, so can meet your requirement at an affordable price. Apply to:Widely used, fitting for electric screwdrivers, hand screwdrivers, electric drills, and so forth.