8-Piece Spline Lug Nut Socket Set. 12 SPLINE 13/16". 12 SPLINE 11/16". 7 SPLINE 3/4". 7 SPLINE 5/8". 7 SPLINE 11/16". EASY LOCK NUT REMOVAL - This wheel lock key set makes it easy to remove broken, peeled, rusted, rounded-off, or frozen wheel locks, compatible with various fasteners.