Guyker 509A-SP CNC Aluminum Locking Guitar Tuners 3R+3L 1:21

Key Features:

• CNC aluminum alloy housing provides lightweight, durable, and corrosion-resistant construction
• Brass gear components support reliable wear resistance and smooth tuning operation
• Large wing-style tuner buttons offer a distinct grip and appearance compared with the 504A-SP style
• Locking tuner structure helps make restringing faster and secures the string more firmly
• 3R+3L configuration fits guitar headstocks with a three-per-side tuner layout
• Screw-in hex head bushing and single mounting tab support stable installation
• Available in Black and Silver finishes

Specifications:

• Material: CNC Aluminum Alloy, Brass Gear
• Color: Black, Silver
• Array: 3R+3L
• Gear Ratio: 1:21
• Peg Hole Requirement: 10 mm
• String Post Diameter: 6 mm
• Max. String Gauge: 1.8 mm
• String Thru Hole Center Height: 22.5mm
• Overall Length: 42 mm
• Body Height: 27.4 mm
• Body Width: 16 mm
• Button Size: 27.7 mm
• Mounting Tab Hole Diameter: 2.6 mm
• Mounting Tab Center Height: 10.5 mm
• Bushing Type: Screw-in Hex Head
• Weight: 29 g per piece / 174 g per set
• Suitable For: Guitar with 3R+3L tuner layout

Package Includes:

• 1 set of guitar tuning machines (3R+3L)
• Matching threaded bushings
• Matching washers

Fitment Note / Warm Reminder:

• Suitable for guitars using a 3R+3L tuner layout
• Please verify your peg hole size, string post diameter, mounting tab position, tuner footprint, and button clearance before ordering
• For replacement projects, compare your original tuner measurements with the technical drawing to ensure proper fit