Most Lakland Skyline Basses use our Licensed 1/2" Ultralite tuning machine, which fits a 5/8" (16mm) peghead hole.
Our 1/2" Ultralite Xtender is designed to fit an 11/16" (17.5mm) headstock hole. However, we offer a special 5/8" adapter nut that allows it to work seamlessly with the Skyline.