Detail 01
Nickel finish
Provides the nickel finish specified for this version.
Product detailSKU #1500000429789
GroverMid-Size Locking Rotomatics 406 Series Tuning Machines Nickel 6+6
1/2
Independent shopping perspective
The Korena take
Grover’s nickel 406 Series Mid-Size Locking Rotomatics combine smaller buttons with a locking cam inside each string post. For a string change, feed the string through the hole, pull it to tension by hand, and tune. The cam rotates to secure the string before the post takes over, allowing the string to be brought to pitch in under one rotation. The 18:1 ratio offers detailed adjustment while tuning.
Strong match
Who this is for
- String changes using a post-through-hole locking procedure.
- Players looking for smaller tuner buttons with 18:1 tuning control.
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 string post
The locking cam engages before the string post begins rotating.
Final check
Know before you order
- 01Confirm the 6+6 designation matches the tuner arrangement you need.
- 02The installation process starts by threading strings through the post holes and pulling them taut by hand.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Are the buttons full-size?
No. These are mid-size locking Rotomatics with smaller buttons than the standard locking Rotomatics.
