Description: 【Multifunctional Set】: This set includes a variety of sizes and specifications of hexagonal sockets Hex Bit , 3/8'' 10mm interface, suitable for different sizes of screws and nuts. It's ideal for professional use or DIY projects. 【Metric & System】: The set covers both metric ( H6 H7 H8 H10 H12 H14 H17 H19 ) and specifications ( 1/4'' 5/16'' 3/8'' 7/16'' 1/2'' 9/16'' 5/8'' 3/4'' ), allowing users to choose the right tool according to their needs. 【Suitable for Electric Wrenches】: This set can be used with electric or manual wrenches, improving disassembly efficiency and reducing work time. 【Quality Material】: Hex Driver Socket Set is made from quality chrome molybdenum steel, this set is wear resistant and sturdy. It can withstand long term use without deformation or damage. Anti drop hole design at the bottom. 【Precision Processing】: The sockets are processed to ensure accuracy and durability, making them suitable for various mechanical processing needs. Specification: Material: Chrome molybdenum steel Size Chart: Storage Box:22cmx11cmx5cm/8.66inchx4.33inchx1.97inch Package Includes: 1 3/8'' Hex Socket Set Note: Please allow slightly errors 1-2cm differences due to manual measurement.