Quick installation and removal: Save time and energy when changing tires. The tire nut wrench has good operability and can help you easily remove and install the anti-theft nuts on the tires. With the corresponding spline driver, it can not only save the cost of car repair, but also improve work efficiency and save time. Portable and easy to carry: The wheel nut socket adopts a portable storage design. Its size is 3.5 * 0.8 * 0.8 / 3.5 * 0.9 * 0.9 inches, which is about the size of a lipstick, making it easy to carry and store. Whether you put it in the trunk of the car or in the tool bag, it will not take up too much space and is easy to access when needed. 08AL steel: The raw material of this tire nut wrench is 08Al steel, which is a low-carbon steel with good plasticity, toughness and not easy to rust. The surface is treated with steel electrophoresis technology, the surface is smoother, and the paint always adheres tightly and evenly to the tool. Application: 6-spline nut socket is used for wheel nuts with thread size of M12x1.25, M12x1.5, 1/2"-20; 7-spline nut socket is used for wheel nut wrench with thread size of M14x1.5, M14x1.75, M14x2, 9/16"-18. Both models are suitable for a wider range of automotive parts and are generally suitable for most automotive and modified wheel nuts with compatible sizes. Packaging and Specifications: This product contains 6 and 7-spline nut wrenches respectively. 6-spline nut wrench: inner diameter: 17.5mm/0.69in; outer diameter: 20mm/0.8in; depth: 53mm/2in; length: 88.9mm/3.5in. 7-Spline Nut Wrench: Inner Diameter: 18.5 mm/0.73 in; Outer Diameter: 23.5 mm/0.92 in; Depth: 66 mm/2.6 in; Length: 89.9 mm/3.55 in.