Detail 01
14:1 sealed, permanently lubricated gears
The gears are described as smooth and maintenance-free for their lifetime.
Product detailSKU #1500000430093
GroverVintage Deluxe 138 Series Tuning Machines Nickel
Independent shopping perspective
The Korena take
For electric or acoustic guitar work, these nickel-finished Grover Vintage Deluxe 138 Series tuning machines combine sealed, permanently lubricated 14:1 gears with stamped steel housings. Fit is the key part of the job: the solid-headstock specification calls for a 23/64-inch post hole and 27.8 mm overall post length. A horizontal version is described for slotted headstocks using 15/64-inch post holes. The vintage appearance accompanies smooth tuning adjustments without ongoing gear maintenance.
Strong match
Who this is for
- Replacing tuning machines on an electric or acoustic guitar after confirming the headstock measurements.
- Players making tuning changes between songs in a performance or recording session.
Consider the trade-offs
When to look elsewhere
- Headstocks that do not match the stated solid-headstock or horizontal slotted-headstock post-hole specifications.
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
23/64-inch post hole; 27.8 mm overall post length
These are the stated fit measurements for solid headstocks.
Detail 03
15/64-inch post holes on the horizontal model
This measurement applies to the version for slotted headstocks.
Final check
Know before you order
- 01Identify whether your guitar has a solid or slotted headstock and check its post-hole measurement.
- 02The 15/64-inch specification applies to the horizontal model for slotted headstocks.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Are these suitable for electric and acoustic guitars?
Yes. They are described for electric or acoustic guitar.
02What is the gear ratio?
The sealed gears use a 14:1 ratio.
03What headstock measurements are listed?
Solid headstocks use a 23/64-inch post hole and 27.8 mm overall post length; the horizontal slotted-headstock model uses 15/64-inch post holes.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsOther
- Sealed Lubricated 14
- 1 gears
