- Spline Socket Set: This 1/2-inch Spline Drive Socket Set includes 19 high-quality spline sockets. Made from Chrome-Vanadium (CR-V) steel, these sockets are designed to resist rust and come with a convenient storage case for easy organization. - Built to Last: Each socket in this set is constructed from chrome-vanadium steel with a mirror nickel finish. The drop-forged, heat-treated 12-point design ensures resistance to both rust and corrosion. This automotive socket set is engineered for strength and durability, meeting ANSI standards for quality. - Versatile Application: Unlike traditional 4-point, 6-point, and triple square sockets, this spline socket set accommodates a wide range of fastener sizes. Spline sockets provide twice the torque compared to standard fasteners, making them ideal for demanding tasks. Use this set for high-torque applications such as removing tamper-proof lug nuts, cylinder head bolts, and other critical engine bolts. - Compatible Sizes: The set includes spline sockets sized E8, E9, E10, E11, E12, E13, E14, E15, E16, E17, E18, E19, E20, E21, E22, E24, E27, E30, and E32, ensuring you have the right tool for various automotive and mechanical needs. This Spline Socket Set offers the strength, versatility, and durability required for efficient and effective repairs and maintenance.