Detail 01
15:1 gear ratio
Provides fine control over tuning adjustments.
Product detailSKU #1500000429918
GroverRoto-Grip Locking Vintage 533 Series Tuning Machines Chrome 6-in-line
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Independent shopping perspective
The Korena take
Roto-Grip Locking Vintage 533 Series machines in a chrome 6-in-line configuration combine vintage styling with locking string retention. Their sealed, lubricated 15:1 gears allow fine tuning adjustments, while the thumbscrew mechanism secures each string in place. Self-lubricating housings are designed to eliminate maintenance. For compatible instruments, they are positioned as a drop-in replacement, and bushings plus screws are included for the installation.
Strong match
Who this is for
- Replacing compatible 6-in-line tuning machines with chrome, vintage-styled locking hardware.
- Players who value fine adjustment from a 15:1 gear ratio during tuning.
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, self-lubricating housings
The housings are designed to eliminate maintenance.
Detail 03
Locking thumbscrews
The mechanism holds strings securely in place.
Final check
Know before you order
- 01Check your instrument's tuner layout before ordering; these are described as a drop-in replacement for many instruments.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What hardware comes with these tuning machines?
Bushings and screws are included.
02What keeps the strings in place?
A locking thumbscrew mechanism secures the strings.
