Grover Roto-Grip Locking Rotomatic (502 Series) 3+3 Tuners

Grover Roto-Grip Locking Rotomatic Tuners: Precision and Convenience

Faster String Changes with Locking Security

The Grover Roto-Grip Locking Rotomatic (502 Series) tuners are designed for guitarists who demand precise tuning stability and effortless string changes. With a rear thumbscrew locking mechanism, these tuners securely lock strings in place, eliminating slippage and making string changes quick and easy. Perfect for 3-left/3-right peghead configurations, they’re ideal for a variety of guitars.

Precision Tuning with a Smooth Feel

Featuring an 18:1 gear ratio, these tuners provide unparalleled precision, allowing you to dial in your pitch with ease. The smooth operation ensures consistent performance, whether you’re tuning up before a performance or making adjustments on the fly.

Built to Last

The Roto-Grip tuners are equipped with cast gear housings and sealed lifetime lubrication, requiring no maintenance. Traditional large Rotomatic removable metal knobs maintain the iconic look while delivering reliable functionality.

Perfect for Vibrato Users

Thanks to the locking mechanism, you’ll need fewer string wraps, which improves tuning stability and enhances your guitar’s tremolo performance by ensuring more accurate return-to-pitch.

Easy Installation

These tuners fit standard 10mm-diameter (13/32") pegholes and come with all necessary mounting hardware, including threaded hex peghead bushings, washers, and screws, for hassle-free installation.

Features

• Configuration: 3-left/3-right for pegheads
• Gear Ratio: 18:1 for precise tuning
• Locking Mechanism: Rear thumbscrew for non-slip tuning and fast string changes
• Build: Cast gear housings with lifetime sealed lubrication
• Knobs: Traditional large Rotomatic removable metal knobs
• Mounting Hardware: Includes threaded hex peghead bushings, washers, and screws
• Peghole Size: Requires 10mm-diameter (13/32") pegholes

These heads work nicely as intended and are in excellent condition. Screws and ferrules are included.