Grover Professional Mandolin Machine Heads for A Style, 4+4, Nickel Finish, 309N
The World's Finest Machine Heads
Professional Mandolin Machine Heads
For "A" Style Mandolins
(Hole size 21/64")
Part #: 309N
Condition: New In Package
Professional Mandolin Machine Head (309 Series)
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. Available in “A”, “F”, and “F Vintage” styles. Screws and bushing provided.
Grover tuners have been keeping the world's finest guitars/mandolins in tune for almost a century. Known and trusted as the finest tuners available.