
GK-510D8SP Guitar Locking Tuners (3L + 3R) - 1:21 Lock String Tuning Key Pegs
Key Features:
- Locking string design helps make restringing faster and keeps the string more securely clamped.
- 21:1 gear ratio supports finer tuning adjustment.
- 3R+3L layout is designed for 3+3 headstock configurations.
- Fits 10mm peg holes and uses screw-in hex head bushings.
- 6mm string post diameter supports strings up to 1.8mm.
- Complete 6-piece tuner set with matching installation hardware included.
Specifications:
- Type: Locking guitar tuners
- Layout: 3R+3L
- Gear Ratio: 21:1
- Peg Hole Requirement: 10mm
- Weight: 39.5g each / 237g per set
- String Post Overall Height: 22mm
- String Post Diameter: 6mm
- Max. String Gauge: 1.8mm
- Tuner Footprint: 27.5 x 23.5mm
- Button Size: 23 x 17.4mm
- Bushing Type: Screw-in hex head
- Suitable For: 3+3 electric or acoustic guitars with modern 10mm tuner holes
Package Includes:
- 6 x Guitar machine heads
- 6 x Threaded bushings
- 6 x Mounting screws
- 6 x Ferrules
Fitment Note / Warm Reminder:
Important: Please confirm your guitar uses a 3R+3L / 3+3 tuner layout, 10mm headstock holes, and a compatible rear mounting pattern before ordering. Please compare the tuner footprint, post dimensions, and bushing style with your original tuners to ensure proper fit.

Original: $34.99
-65%$34.99
$12.25Product Information
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Description
Key Features:
- Locking string design helps make restringing faster and keeps the string more securely clamped.
- 21:1 gear ratio supports finer tuning adjustment.
- 3R+3L layout is designed for 3+3 headstock configurations.
- Fits 10mm peg holes and uses screw-in hex head bushings.
- 6mm string post diameter supports strings up to 1.8mm.
- Complete 6-piece tuner set with matching installation hardware included.
Specifications:
- Type: Locking guitar tuners
- Layout: 3R+3L
- Gear Ratio: 21:1
- Peg Hole Requirement: 10mm
- Weight: 39.5g each / 237g per set
- String Post Overall Height: 22mm
- String Post Diameter: 6mm
- Max. String Gauge: 1.8mm
- Tuner Footprint: 27.5 x 23.5mm
- Button Size: 23 x 17.4mm
- Bushing Type: Screw-in hex head
- Suitable For: 3+3 electric or acoustic guitars with modern 10mm tuner holes
Package Includes:
- 6 x Guitar machine heads
- 6 x Threaded bushings
- 6 x Mounting screws
- 6 x Ferrules
Fitment Note / Warm Reminder:
Important: Please confirm your guitar uses a 3R+3L / 3+3 tuner layout, 10mm headstock holes, and a compatible rear mounting pattern before ordering. Please compare the tuner footprint, post dimensions, and bushing style with your original tuners to ensure proper fit.

























