Our professional F Style model mandolin machine heads are the latest in technology. The specially designed, adjustable 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. The worm to gear ratio is 18:1.

• 409FG Gold For Standard 4 + 4 F Style Mandolins with Pearloid Buttons