Features: Craft from steel with sandblasting finish, highly hardnesss and durability, suitable for industrial use. Feature:The magnetic bit tip can hold the screw secure before installation and after removing the screw to improve efficiency. Usage:Can be used for electric screwdriver, manual screwdriver, electric drills, air drills, etc. Notice:Do not turn the screws with mismatched size to avoid damage to both the screw and the drill. Excellent replacement for lost, broken hex screwdriver bit; Exquisites workmanship, each edges can accurately lock the screws without damaging the screws and the screwdriver bit Specifications: Component: Steel Length:Approx.2.4cm/0.94inch 2.5mm Hex Head 1/4" Hex Shank Package Includes: 10pcs Magnetic Screwdriver Bit note: Please allow 1-2cm errors due to manual measurement,please make sure that you donot mind befores you order. Due to the differences between different monitors, the picture may not reflect the actual item color.