Detail 01
18:1 gear ratio
Supplies the fine ratio specified for accurate mandolin tuning.
Product detailSKU #1500000429850
GroverProfessional Mandolin Vintage F Style 409 Series White Button Tuning Machines Gold
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Independent shopping perspective
The Korena take
The gold-and-white Grover Vintage F Style 409 Series set is a mandolin tuning-machine option with an 18:1 ratio for fine tuning adjustment. Its open gears follow a vintage worm-under arrangement, paired with bell-top button screws and a die-cast plate. The machines use 25/64-inch post holes and have a 30.3 mm overall post length, details worth matching to the instrument before a replacement job.
Strong match
Who this is for
- Outfitting a retro-styled F-style mandolin with gold machines and white buttons.
- Mandolin replacements where the required 25/64-inch post-hole size and 30.3 mm post length match.
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
30.3 mm overall post length
A measurement to compare with the existing mandolin tuning-machine layout.
Final check
Know before you order
- 01Check both the 25/64-inch post-hole requirement and the 30.3 mm overall post length.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What gear arrangement does this set use?
It uses open gears in a vintage worm-under configuration.
02What color is the hardware?
The tuning machines have a gold finish with white buttons.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- White
