Detail 01
18:1 gear ratio
Provides the stated precision-tuning control.
Product detailSKU #1500000429864
GroverProfessional Mandolin Vintage A Style 409 Series White Button Tuning Machines Nickel
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Independent shopping perspective
The Korena take
With white buttons and a nickel finish, this Grover 409 Series set is built around vintage A-style mandolin hardware. The 18:1 gearing is specified for precise tuning and stable intonation. Open worm-under gears, die-cast plates, and bell-top button screws supply the traditional visual character, while the 25/64-inch post hole and 30.3 mm overall post length give you concrete dimensions for evaluating the installation on your mandolin.
Strong match
Who this is for
- Replacing mandolin tuners after confirming the listed post-hole and post-length dimensions.
- Players wanting precision tuning in a white-button, nickel-finish vintage-style set.
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
25/64-inch post hole; 30.3 mm overall post length
These dimensions are relevant when checking mandolin installation.
Final check
Know before you order
- 01Confirm that your mandolin accommodates a 25/64-inch post hole and 30.3 mm overall post length.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What finish and button color does this version have?
It has a nickel finish and white buttons.
02What type of gear layout does it use?
It uses open gears in a worm-under configuration.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- White
