Product description: Quantity: one set (3 pieces) Technical specifications: Material: Tool Steel - Length: 1/2"-50mm, 1/4"-50mm, 3/8"-50mmBreite: 1/2"-12.7mm, 1/4"-6.3mm, 3/8"-9.5mm Kit contains: 1/2" 1/4" hex socket, six 3/8" socket head, film packaging. HSS stainless steel socket adapters are made of robust HSS steel. This type of metal is commonly used for keys and all types of tools. It is known for its strength and durability and is therefore ideal for use in industrial machinery. HSS is also hard wearing and therefore a reliable choice for hex adapter sockets. Wide application - 3 pack of universal hex adapters on 1/2" 1/4" 3/8" are perfect for all do-it-yourselfers. Whether you sit for hours with your universal socket wrench in the garage and repair your car, turn in different constructions in the garden or build your dream gazebo. With the Multi-Purpose Cordless Drill and Driver Socket, even the toughest jobs can be done. Hex Adapter - The most commonly used type of bit holder is the hex adapter that fits to impact sockets and has a hexagonal hole. They are used to fix screws, nuts or bolts of different sizes. Sockets are a good investment if you frequently use an impact driver or drill to drill holes in wood, metal, or other materials. They make changing different bits quick and easy. 3-Pack - The 3-piece set consists of up to three pieces that fit the ratchet set perfectly. 1/2", 1/4" and 3/8" sockets are the most common socket wrenches and are commonly used for different sockets. With them, you can replace your square wrench and torque wrench with a screwdriver or impact driver. The kit completes your ratchet box with additional working possibilities. The universal adapter is incredibly easy to install and use. After just a few seconds you can use the extension in your screwdriver or drill bit. They hold the socket wrench perfectly thanks to the sturdy ball lock. This ensures that the tool adapter does not come loose and fall off while working. Thanks to its length of 5 cm, it can also be used as an extension for hard-to-reach places.