Grover Professional Mandolin Machine Heads 309FN, Standard 4 + 4, For “F” style Mandolins, Nickel

These new, professional 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 insure correct alignment for the finest tuning possible. The worm to gear ratio is 18:1. Screws and bushing provided.

Product Features

  • F-type Deluxe Mandolin Tuners
  • 18:1 ratio, Nickel with Pearl buttons, Worm over gear
  • Designed by master luthier Lynn Dudenbostal
  • Item Number: 309FN
  • Available at Ant Hill Music!