Detail 01
18:1 gear ratio
Provides precise tuning control.
Product detailSKU #1500000429775
GroverMid-Size Locking Rotomatics 406 Series Tuning Machines Black Chrome 6+6
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Independent shopping perspective
The Korena take
Grover’s black chrome Mid-Size Locking Rotomatics 406 machines use a locking cam at each string post. Feed the string through its hole, pull it to tension by hand, then begin tuning: the cam rotates first to lock the string, after which the post turns to bring it to pitch. The process is designed to reach pitch in less than one full rotation, while 18:1 gearing provides precise tuning control. Smaller buttons keep the mid-size format compact.
Strong match
Who this is for
- Guitar string changes where locking the string before bringing it to pitch is preferred.
- Players who want strings brought to pitch in less than one full post rotation.
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
Locking cam in each string post
The cam rotates first as tuning begins, locking the string before the post turns.
Detail 03
Smaller buttons
Keeps the controls in the series’ mid-size format.
Final check
Know before you order
- 01Confirm your required tuner layout before ordering: the product is identified as 6+6 and also described for 3+3 and reverse 6-in-line guitars.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How does the locking mechanism work?
Insert the string through the hole and pull it to tension. As you turn the knob, the locking cam rotates first; once locked, the string post begins turning.
02How quickly can a string reach pitch?
The design is described as bringing each string to pitch in less than one full rotation.
03What guitar layouts are described?
It is identified as 6+6 and also described for 3+3 and reverse 6-in-line guitars; confirm your required layout before ordering.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Black
