Detail 01
18:1 gear ratio
The tuning machines use an 18:1 gear ratio.

Independent shopping perspective
Gold Grover 406 Series mid-size locking Rotomatics with an 18:1 gear ratio and a locking-cam string post design.


Strong match
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What matters in use
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 01
The tuning machines use an 18:1 gear ratio.
Detail 02
The cam rotates first to lock the string; after it is locked, the string post turns to bring the string to pitch.
Detail 03
The 406 Series uses smaller buttons than standard locking Rotomatics.
Final check

Product questions
Straight answers to the questions shoppers most often ask about this product.
They are described for 3+3 and reverse 6-in-line guitar configurations.
Insert the string through the hole and pull it to tension by hand. When tuning begins, the locking cam rotates first; once locked, the string post turns.
The gear ratio is 18:1.
Gold.
Reference
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