Detail 01
Overlapping-ear design and drop-in bushings
Uses existing screw holes and requires no changes to the post holes on the intended vintage Fender installation.
Product detailSKU #1500000429898
GroverMini Roto-Grip Locking Rotomatics 505Fv Series Tuning Machines Chrome
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Independent shopping perspective
The Korena take
Built for upgrading a vintage Fender guitar to locking tuners without altering its screw or post holes. The 505Fv Series uses an overlapping-ear layout that follows the existing screw-hole pattern, while the included drop-in bushings avoid changes to the post holes. An 18:1 gear ratio supports fast, accurate tuning adjustments, and the sealed, lubricated gears are intended to keep operation smooth. Installation hardware is included, and the tuners support string gauges up to .064.
Strong match
Who this is for
- Updating a vintage Fender guitar with locking tuners while retaining its existing mounting holes.
- Players using strings up to .064 gauge who want accurate 18:1 tuning adjustments.
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
Provides fast, accurate tuning adjustments.
Detail 03
Supports .064 string gauges
Accommodates strings in that gauge range.
Final check
Know before you order
- 01Confirm that your guitar is the intended vintage Fender format with the existing screw-hole layout.
- 02Verify your strings are no heavier than the supported .064 gauge.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Do these require drilling into a vintage Fender guitar?
No. The overlapping-ear design uses the existing screw holes, and the included bushings require no post-hole changes.
02Is installation hardware included?
Yes, all necessary installation hardware is included.
03What is the gear ratio?
These tuners use an 18:1 gear ratio.
