*KEY* 6 SPLINE TUNER DRIVE WHEEL LUG NUT REPLACEMENT CHROME KEY Fits our 6 spline lug nuts (open or closed end) - 12x1.5mm, 12x1.25mm, 7/16", 1/2". They will not work on 14MM Lug nuts. Fits Muteki spline drive lug nuts (open or closed end). They will not work on SR35 and SR48 models. Fits almost all Gorilla 6 spline 12mm lug nuts. They will not work on 14MM Lug nuts. Package Quantity: (1) 6 Point Chrome Spline Tool Key 6-SPLINE KEY HEX SIZE: 3/4 & 13/16 or 19mm/21mm