Detail 01
18:1 gear ratio
Provides precise tuning adjustment.

Independent shopping perspective
Gold-finished Grover Vintage F Style 409 Series machines with black buttons offer an 18:1 ratio for precise mandolin tuning. Their adjustable open gears use a modern worm-over configuration, and the die-cast mounting plate works alongside bell-top button screws to give the set its vintage-inspired presentation. It is a focused tuning-machine option for players who want these particular black-and-gold visual details.

Strong match
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
Provides precise tuning adjustment.
Detail 02
Forms part of the tuning-machine assembly.
Product questions
Straight answers to the questions shoppers most often ask about this product.
They have a gold finish with black buttons.
They use adjustable open gears in a modern worm-over configuration.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.