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.