Gotoh SD90 Magnum Locking Tuners 3 x 3 (Nickel) in excellent condition. This set of 3 x 3 Gotoh SD90 locking tuners are in the traditional Kluson/Gibson style design. The press fit bushing fits a 11/32" hole (8.8 mm) in the headstock to secure the string post. Features Vintage Kluson Deluxe style tuners Magnum Lock technology with minimal visual impact 1:15 Gear ratio tunes up quickly Traditional press fit bushing secures and aligns string post in headstock All mounting hardware included Made in Japan String Post Bushing Diameter 8.8 mm (0.35")