Features
The 309 "Professional" model tuners are the latest
in technology manufactured with the traditional
Grover� quality and craftsmanship. They feature
an adjustable worm gear that provides a smooth,
presise turning action while keeping the gear and
worm centerlines in alignment.
Removable buttons and an18:1 gear ratio for smooth,
accurate tuning.
The Vintage model 309FV mounts with the string post
above the shaft and turns counter clockwise.
The standard model 309F mounts with the string post
below the shaft, turns clockwise, and can be found here.
Available in Gold or Nickel finish.
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