Detail 01
14:1 gear ratio
Provides the ultrafine tuning control described for the 102 Series.
Product detailSKU #1500000429383
GroverRotomatics 102 Series Keystone Button Tuning Machines Gold
1/2
Independent shopping perspective
The Korena take
Grover’s gold 102 Series Rotomatics pair keystone buttons with a 14:1 ratio for careful, incremental tuning adjustments. Their sealed, lubricated gearing is designed to operate smoothly without slipping or backlash, while the oversized housing provides support around the worm, gear, and string post. A countersunk screw lets you set tuner tension to your own preference. They suit classical, steel-string acoustic, and archtop jazz guitars where controlled tuning adjustment is the priority.
Strong match
Who this is for
- Fine-tuning classical, steel-string acoustic, or archtop jazz guitars with a 14:1 gear ratio.
- Players who want to adjust tuning-machine tension with the countersunk tension screw.
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
Countersunk tension screw
Lets you adjust the tuning-machine tension to your preferred setting.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can I adjust the tuner tension?
Yes. The countersunk tension screw is adjustable to your preferred specification.
02Which guitar types are named for the 102 Series?
Classical guitar, steel-string acoustic, and archtop jazz guitar are named.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Gold
