Guyker GK102SP-A Locking Guitar Tuners for Electric Guitar 1:21 Ratio

Upgrade your electric guitar with Guyker GK102SP-A locking guitar tuners featuring a precise 1:21 gear ratio and durable zinc alloy construction. Designed for stable tuning performance and reliable replacement applications, these 3R3L locking tuners provide smooth adjustment and secure string holding. Key Features Locking tuner design: Helps improve tuning stability by securely holding guitar strings during performance and string changes. 1:21 gear ratio: Provides precise tuning adjustment with smooth and accurate operation. Zinc alloy construction: Built with durable metal housing for reliable long-term use. 3R3L layout: Designed with 3 right-side and 3 left-side tuning machines for standard electric guitar headstocks. 10 mm peg hole compatibility: Designed for guitars requiring 10 mm tuner mounting holes. Complete hardware included: Includes bushings, mounting screws, and ferrules for convenient installation. Technical Specifications SKU / Model GK102SP-A Product Type Locking Guitar Tuners Suitable For Electric Guitar Layout 3R3L Gear Ratio 1:21 Material Zinc Alloy String Thru Hole Center Height 21.8 mm Peg Hole Requirement 10 mm String Post Diameter 6 mm Tuner Mounting Orientation 90 Degree Bushing Type Screw-in Hex Head Compatibility Notes Important: Please confirm your guitar’s peg hole diameter, tuner mounting screw position, and headstock configuration before ordering. Guitar models may vary by production year, factory, and region. Package Includes Complete 6-piece tuner set: 6 x Guitar machine heads 6 x Threaded bushings 6 x Mounting screws 6 x Ferrules Installation Note Before installation: Compare the tuner dimensions with your original hardware to confirm compatibility. Minor modification may be required depending on the guitar model and existing tuner mounting design.