Detail 01
Thumbscrew locking mechanism
Lets the strings be changed in seconds.
Product detailSKU #1500000429897
GroverRoto-Grip Locking Rotomatics 502 Series Keystone Button Tuning Machines Gold
1/2
Independent shopping perspective
The Korena take
Gold-finished locking tuners for players who want a faster string-change routine and controlled tuning adjustments. The 502 Series combines a thumbscrew locking mechanism with sealed, lubricated gears, so the tuner controls are designed for precise adjustment while the locking setup lets you change strings in seconds. Its 25/64-inch post hole and 28.2 mm overall post length are key measurements to confirm when considering it as a replacement tuner set for gigging or studio guitars.
Strong match
Who this is for
- Replacing compatible guitar tuners when quick string changes and locking operation are priorities.
- Guitarists making precise tuning adjustments for gig or studio use.
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
Supports smooth, precision tuning adjustments.
Final check
Know before you order
- 01Confirm the 25/64-inch post-hole requirement and 28.2 mm overall post length against your guitar.
- 02Check that your existing tuner layout accepts this 502 Series replacement.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What finish do these tuning machines have?
They have a gold finish.
02How do the tuners lock the strings?
They use a thumbscrew locking mechanism.
03What post-hole measurement is specified?
The specified post hole is 25/64 inch.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Gold
