Features: * Hex Socket Socket Wrench Set Socket Adapter. * Easy operation, the course is not easy to fall off. * Deepened sleeve, strong torque, high bite. Suitable for installing and removing hexagon screws.* Used in air screwdrivers, electric screwdrivers, air drill, drills, pistol drills, screwdrivers and other hand tools when assembling hexagon tools for holding.* Widely used in home DIY, carpentry, auto parts, specialized into machine repair and so on.* Applications include car repair, mechanical repair, workshop work, structural engineering. Specifications: Product Name: Hex Socket Material: Chrome Vanadium Steel Color: Black Size: H8, H10, H12 Suitable for: Home DIY, Carpentry, Auto Parts, Specializing in Machine Repair and so on. Quantity: 3pcs Package Included: 3 Hex Socket Note:1. Transition: 1cm = 10mm = 0.39 inch.2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.3. Please allow slight manual measurement deviation for the data.