Feature: 1. Versatile Options: Screwdriver socket set includes different sizes and types of screwdriver heads to meet the needs of a variety of different screw models for a wide range of application scenarios. 2. High Compatibility: The screw head can be used with a variety of tools, such as wrenches, sockets, etc. It has a wide range of compatibility and is convenient for users to carry out a variety of work. 3. Save Time and Efficiency: Use the screwdriver bit set to quickly change driver heads and increase work efficiency; the sleeve design also reduces spin and friction, making it easier to turn screws or nuts. 4. Durable Construction: Screwdriver bit socket kit is made of premium material, which is hardness, high strength, sturdy and durable and has a long service life. 5. Easy to Use: Screwdriver bit socket kit is designed to be easy to use, so you can use it easily, which is convenient and practical for you. Specification: Item Type: Screwdriver Bit Socket SetMaterial: Cr MoSize:1/4inch : M4, M5, M6 3/8inch : For M14, M8, M9, M10, M12 1/2inch : M16, M18Fitment:For car and motorcycle repairs. Package List: 1 x Screwdriver Bit Socket Set (10pcs)1 x Blow Molded Box