8-Piece Lug Nut Impact Socket Set – 1/2-inch Drive, 6-Point: This 12.7 mm (1/2-inch) socket set includes four Imperial sizes (3/4", 13/16", 7/8", 15/16") and four metric sizes (17 mm, 19 mm, 21 mm, 22 mm), along with a 76.2 mm (3-inch) extension bar. Made from heat-treated CR-MO steel, these sockets can withstand high torque from impact tools. High-contrast size markings allow for quick identification, even in low-light conditions. All sockets are stored in a convenient carrying case for easy organisation and transport, making it ideal for vehicle maintenance.