Detail 01
Orientation: left handed
The set is made for a left-handed electric guitar.
Product detailSKU #1500000397823
Graph TechRatio 6-In-Line Lefty Electric Locking Tuning Machine Heads Black 6 String
Independent shopping perspective
The Korena take
Built for a left-handed electric guitar with six inline tuners, this black locking Ratio set uses individually calibrated gear ratios to keep tuning adjustments consistent across the strings; a half-turn represents one semitone. The two-pin housing can be installed directly or used with the included brushed-aluminum InvisoMatch mounting plates. Those four plate sets are intended to speed installation by working with existing screw mounting holes on most guitars. Confirm the 10mm peg-hole requirement first.
Strong match
Who this is for
- A left-handed six-in-line electric guitar receiving a locking tuner replacement.
- Installation work using existing screw holes with one of the included InvisoMatch plate sets.
- Electric-guitar tuning adjustments that benefit from the Ratio half-turn, semitone relationship.
Consider the trade-offs
When to look elsewhere
- Right-handed electric guitars.
- Headstocks without six-in-line tuners or 10mm peg holes.
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
Required peg-hole diameter: 10mm
Measure tuner holes before installation.
Detail 03
Four InvisoMatch mounting-plate sets
These brushed-aluminum plates can be used with the two-pin casing and existing screw mounting holes.
Final check
Know before you order
- 01Confirm left-handed orientation, six-in-line layout, and 10mm peg holes.
- 02Check the existing screw mounting holes if planning to use the included InvisoMatch plates.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Are these locking tuners?
Yes. This is a locking Ratio machine-head set.
02Are mounting plates included?
Yes. Four brushed-aluminum InvisoMatch mounting-plate sets are included.
03Can the two-pin casing be installed without mounting plates?
Yes. The two-pin casing can be used as is or with Graph Tech InvisoMatch mounting plates.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
3 detailsPlayability
- Orientation
- Left handed
- String Post Diameter
- 0.236 inch (6mm)
- String Post Length to String Hole
- 0.910” (23mm)
1 detailsBody & build
- Color
- Black
1 detailsSize & weight
- Peg Holes Diameter Required
- 13/32 inch (10mm)
1 detailsOther
- Gear Ratio
- 39:1, 24:1, 20:1, 35:1, 20:1, 12:1
