Detail 01
18:1 gear ratio
Provides smooth, accurate tuning adjustments.

Independent shopping perspective
Built for 6-in-line layouts, these black Grover Mid-Size 505 tuners combine a compact footprint with an 18:1 ratio for controlled tuning adjustments. The Roto-Grip locking system holds each string in place to address slippage and support tuning stability. They are suited to inline applications, 12-string guitars, and smaller headstocks. For an instrument already using non-locking Grover MINI 205 tuners, the set installs as a direct replacement without modification.

Strong match
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
Provides smooth, accurate tuning adjustments.
Detail 02
Secures strings in place to reduce slippage.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Yes. They are designed as a direct drop-in replacement and require no modifications.
They use an 18:1 gear ratio for smooth, accurate adjustments.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.