[ IMPORTANT COMPATIBILITY INFORMATION ]</br> - Compatible with most six-spline lug nuts on the market.</br> - There are a few different types of spline lug nuts, please check to make sure your lug nuts are 6-sided spline.</br> - This socket key with all of our spline lug nut kits. So if you are looking for an extra key for a set you bought from us, this is the correct item.</br> - Socket key has a 20.5mm (0.81 inch) diameter. This means your wheel's lug holes must be larger than 20.5mm (0.81 inch) for this tool to fit.</br></br>