Detail 01
Reverse 6-in-line
This is the configuration identified for this version.
Product detailSKU #1500000429781
GroverMid-Size Locking Rotomatics 406 Series Tuning Machines Black Chrome Reverse 6-in-line
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Independent shopping perspective
The Korena take
The Black Chrome 406 Series set is a reverse 6-in-line version of Grover’s mid-size locking Rotomatics. For each string, load the hole, pull the string tight by hand, and tune normally. Initial knob movement works the locking cam; once it has secured the string, the post turns to bring it to pitch. Grover describes that process as reaching pitch in less than one post rotation, with 18:1 gearing for precise tuning.
Strong match
Who this is for
- A reverse 6-in-line guitar needing Black Chrome mid-size locking tuning machines.
- String changes where the supplied locking-cam tuning sequence is preferred.
Consider the trade-offs
When to look elsewhere
- Guitars that do not use a reverse 6-in-line tuner layout.
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
18:1 gear ratio
It is the gearing specified for precision tuning.
Final check
Know before you order
- 01Check that your guitar requires reverse 6-in-line tuning machines.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How quickly can the post bring a string to pitch?
Grover states that it can do so in less than one full rotation.
02What is the finish?
Black Chrome.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Black
