Korena
Product detailSKU #1500000452238

GroverMid-Size Roto-Grip Locking Rotomatics 505 Series Tuning Machines Black Chrome 3+3

Grover
Grover Mid-Size Roto-Grip Locking Rotomatics 505 Series Tuning Machines Black Chrome 3+3
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Independent shopping perspective

The Korena take

The black chrome Grover 505 Series Mid-Size Roto-Grip set uses a 3+3 layout, compact housings, and an 18:1 gear ratio for careful tuning adjustments. Its locking posts hold the strings firmly, helping prevent slippage and maintain tuning stability during live performance or studio recording. It is intended for the listed inline, 12-string, and smaller-headstock applications. For a guitar equipped with non-locking Grover MINI 205 tuners, these machines are designed as a direct replacement requiring no modifications.

Grover Mid-Size Roto-Grip Locking Rotomatics 505 Series Tuning Machines Black Chrome 3+3 product detail
Product studyGrover Mid-Size Roto-Grip Locking Rotomatics 505 Series Tuning Machines Black Chrome 3+3

Strong match

Who this is for

  • Live performance or studio recording where reduced string slippage supports consistent tuning.
  • Replacing non-locking Grover MINI 205 tuners on a guitar with a 3+3 layout.
  • Inline applications, 12-string guitars, or guitars with smaller headstocks.

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 01

18:1 gear ratio

Delivers smooth, accurate tuning adjustments.

Detail 02

Roto-Grip locking system

Secures strings in place to help prevent slippage and improve tuning stability.

Final check

Know before you order

  1. 01Check that your guitar requires a 3+3 tuner layout.
  2. 02No modifications are required when replacing non-locking Grover MINI 205 tuners.

Product questions

Before you decide

Straight answers to the questions shoppers most often ask about this product.

01Is this suitable for recording or live performance?

Yes. The locking system is described for maintaining tuning stability in live and studio use.

02What does the locking mechanism do?

It firmly secures strings, helping prevent slippage and improve tuning stability.

Reference

Full specifications

The complete catalog record, organized around the decisions musicians make when comparing gear.

1 detailsBody & build
Color
Black

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