Up for sale is a brand-new, never-installed set of Grover 502C Roto-Grip Locking Rotomatic tuning keys for a 3+3 headstock configuration.

This specific set features unique vintage-style "Gibson Deluxe" stamped metal housings paired with classic green keystone buttons. They deliver the perfect blend of a classic vintage aesthetic and modern high-performance locking stability.

Specifications & Features

• Model: 502C
• Gear Ratio: 18:1 for highly precise tuning adjustments
• Locking Mechanism: Roto-Grip automatic locking system for fast, secure string changes
• Hole Size Requirement: .391" (approx. 25/64") / 10mm pegholes
• Finish/Style: Stamped nickel housing with green tulip/keystone buttons
• Configuration: 3 Left, 3 Right (3+3)

Condition & Cosmetic Notes (Please Read)

• Cosmetic Patina/Oxidation: While these tuners are unused and remain sealed in their plastic tray pockets, they have aged over time inside the packaging. As shown in the close-up photo, the nickel metal housings exhibit natural oxidation, light tarnish, and a dull, matte patina.
• Shaft/Button Condition: The metal shafts show minor surface spotting and light corrosion from storage. The green keystone buttons are fully intact with zero cracks.
• Functional Integrity: This aging is entirely cosmetic. The internal gears, 18:1 locking mechanisms, and mounting threads are 100% functional, structurally sound, and completely unused.
• Packaging: The back of the package shows that all original mounting screws and threaded bushings are included and sealed inside. The outer plastic clamshell packaging is intact but exhibits standard shelf wear, light scuffing, and minor warping from storage.

This set is an incredible find if you are working on a vintage restoration, an authentic relic build, or want to upgrade your Gibson Les Paul, SG, or 3+3 custom guitar with locking functionality without losing the classic look.