Comprehensive Set: This impact socket set includes 3 dual-head sockets covering the most common SAE and metric sizes: 17mm, 19mm, 21mm, 3/4″, 13/16″, 7/8″. It also comes with a 3″ adapter for connection and added reach. The sockets and extension bar connect securely, ensuring a solid fit during use. Dual-Head Design for Efficiency: The innovative dual-head design enhances efficiency by allowing users to switch between different sizes without having to change sockets. This feature saves time and effort, making fastening tasks quicker and more convenient. Durable CR-MO Construction: Crafted from high-strength Chrome Molybdenum steel, this socket set is built to withstand high-impact force and torque. Its superior durability makes it ideal for heavy-duty work environments, ensuring long-lasting performance. Easy Access and Organization: Each socket features clearly laser-etched size markings, and the blue plastic case also has labeled slots for easy identification. This design helps users quickly select the right tool, while the case offers excellent protection, keeping tools organized and easy to carry. Wide Application: With a 1/2″ drive extension bar, these lug nut sockets is compatible with most socket wrench tools such as impact wrenches, torque wrenches breaker bars and so on. It’s ideal for automotive maintenance, such as changing wheel lug nuts, as well as industrial repair tasks involving a wide range of fasteners. Brand ‎WORKPRO Material ‎Chrome Molybdenum Steel Drive System ‎Car Finish Type ‎Polished Number of Pieces ‎4 UPC ‎820909606567 Manufacturer ‎Hangzhou Great Star Industrial Co,.LTD Item Weight ‎2.31 pounds Package Dimensions ‎8.46 x 6.89 x 2.05 inches Item model number ‎003129 Size ‎4pcs Flip Socket Set 4PCS IMPACT FLIP SOCKET SET WITH STORAGE CASE FIRM CONNECTION PRODUCT FEATURES ROUND CORNER OPENING Grips fasteners on the flat sides instead of the corners, reducing the risk of rounding off edges and providing a secure, reliable hold Even force distribution, extends the life of both the socket and fasteners DURABLE CONSTRUCTION Crafted from high-quality CR-MO steel, allowed to endure high-impact applications and extreme torque Phosphate black coating provides added resistance to corrosion and wear, ensuring long-lasting performance WIDE APPLICATIONS COMPATIBLE WITH MOST SOCKET WRENCH TOOLS