Detail 01
18:1 gear ratio
Supports smooth, accurate tuning adjustment.
Product detailSKU #1500000429800
GroverProfessional Mandolin Vintage F Style 409 Series Black Button Tuning Machines Chrome
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Independent shopping perspective
The Korena take
For a chrome-and-black take on Grover’s Vintage F Style 409 Series, these mandolin machines use adjustable open gears in a modern worm-over configuration. The 18:1 ratio is intended for smooth, accurate tuning adjustment. A die-cast mounting plate and bell-top button screws complete the vintage-style hardware presentation, making the finish and button color the key distinction in a mandolin setup.
Strong match
Who this is for
- Mandolin hardware setups where chrome finish and black buttons are the preferred appearance.
- Players seeking smooth, accurate tuning through an 18:1 gear ratio.
What matters in use
The specifications, translated
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 02
Adjustable open gears
Use a modern worm-over configuration.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What color are these machines?
They have a chrome finish and black buttons.
02Are the gears adjustable?
Yes. They use adjustable open gears in a modern worm-over configuration.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Black
