Detail 01
18:1 gear ratio
Provides the listed ratio for precision tuning adjustments.
Product detailSKU #1500000429892
GroverRoto-Grip Locking Rotomatics 502 Series Standard Button Tuning Machines - Gold
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Independent shopping perspective
The Korena take
Designed around Grover’s Rotomatic format, these gold 502 Series Roto-Grip tuning machines use thumbscrews to secure strings during a string change. Their sealed, lubricated 18:1 gearing is intended for fine tuning adjustments and stable intonation. They are presented as a drop-in option for many industry-standard tuners, which makes them relevant when updating compatible guitar hardware without changing the basic tuner layout. Confirm the instrument’s existing tuner format before planning the swap.
Strong match
Who this is for
- Guitar maintenance where locking strings with thumbscrews can speed up a restring.
- Updating a compatible guitar with standard-button tuners in a gold finish.
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
Sealed, lubricated gears
The tuning gears are described as sealed and lubricated.
Final check
Know before you order
- 01Confirm that the existing tuners use an industry-standard format compatible with this drop-in design.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What secures the strings?
The tuners use a thumbscrew mechanism that locks strings in place.
02What finish does this model have?
Gold.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Gold
