Detail 01
18:1 gear ratio
Provides precise tuning adjustment.
Product detailSKU #1500000430135
GroverSta-Tite Ukulele With 18:1 Gear Ratio U99-18 Series Amber Acryllic Button Tuning Machines Nickel
1/2
Independent shopping perspective
The Korena take
Grover’s U99-18 nickel set pairs 18:1 tuning adjustment with amber acrylic buttons and exposed gears. The machines sit on a die-cast plate and include the hardware needed for replacement work. Fit is the key consideration: the post hole measures 22/64 inch, the overall post length is 21 mm, and the stated string-gauge limit is .074 inch. Confirming those details before installation keeps the changeover aligned with the ukulele and its strings.
Strong match
Who this is for
- Replacing ukulele tuners after confirming a 22/64-inch post hole and 21 mm post length.
- Using strings at or below the stated .074-inch gauge limit.
Consider the trade-offs
When to look elsewhere
- Strings exceeding the stated .074-inch compatibility limit.
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
22/64-inch post hole
A headstock fit measurement to check before installation.
Detail 03
21 mm overall post length
Another mounting measurement to verify against the instrument.
Detail 04
Strings up to .074 inch
The stated maximum compatible string gauge.
Final check
Know before you order
- 01Confirm the 22/64-inch post-hole requirement and 21 mm overall post length.
- 02Verify that the intended strings do not exceed .074 inch gauge.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What is the maximum stated string gauge?
These machines are compatible with string gauges up to .074 inch.
02Does the set include installation hardware?
Yes. It comes with the necessary hardware for replacement.
03What buttons does this version use?
It uses amber acrylic buttons.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color Finish
- Brown
1 detailsOther
- 18
- 1 gear ratio for precise tuning
