Grover 409FV Series tuning machines for vintage gear over shaft "F" Style 8-string mandolin with 23mm post spacing. Gold finish with white pearloid buttons. Professional “F” Style model mandolin machine heads are the latest in technology. A specially designed, adjustable 18:1 ratio worm gear along with the die-cast base, maintains the center lines of the gear and worm to ensure correct alignment for the finest tuning possible. Featuring a “rounded washer head” button screw for a more vintage look. Mounting screws and bushings included. |
