Usage Tips:Fitment Precision: Engineered for 7 spline sockets, this lug nut drive socket key is compatible with thread sizes M14x1.5, M14x1.75, M14x2, and 9/16In-18. It's the ideal tool for securing 7 spline wheel lug nuts, ensuring reliable performance. Robust and Durable: Constructed from cold-hardened steel, this spline security socket combines strength with durability. An electrophoretic coating enhances resistance to corrosion and provides a smooth surface for ease of use. Detailed Specifications: Measuring an internal diameter of 20.0mm (0.78In) and an outer diameter of 23.5mm (0.92In), with an overall length of 90mm (3.54In) and a depth of 40mm (1.57In), this lug key features dual hex driving with 21mm (13/16In) and 22mm (7/8In) socket sizes. Optimal Torque and Grip: Designed with thick walls, this tool offers superior grip and maximum torque, making it an essential choice for mechanics. Note: This anti-theft lug nut key is not compatible with hex lug nuts, ensuring proper use. Color: Black Material: Metal Package Contents: 2 x Wheel Nut Socket Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. Measurement may vary by +/- 1-3cm.