Originally featured on Fender Custom Shop guitars, these tuning machines combine vintage looks and mounting style with all of the benefits of contemporary-style locking tuning machines. Package includes six-in-line design nickel-plated steel locking tuning machines, bushings, and mounting screws. Gear ratio: 1:15. Vintage-style screw spacing mounting - 15/16" (23.8 mm). Bushings: Internal diameter is 11/32" (8.8 mm). External diameter is 14/32" (11 mm). Can be retrofitted to nearly any Fender guitar (US or Mexico) using vintage-style tuning machines with 15/16" mounting spacing. Made in Japan.