Grover 409 Series F-Style Mandolin Tuning Keys - Gold/Pearloid

Grover's professional "FV" Vintage Style model mandolin machine heads are the latest in technology. A 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 the gear above the worm and a "rounded washer head" button screw for a more vintage look. The worm to gear ratio is 18:1. Screws and bushings provided.