Pricing and availability
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Based on price data from 5 merchants for "Grover 406 Series Rotomatics Locking Tuners". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Unlock precision tuning with Grover 406 Series Rotomatics Locking Tuners. Crafted for musicians who demand reliability and smooth performance, these tuners offer innovative engineering combined with classic design. Perfectly sized smaller buttons provide a comfortable grip, making them ideal for both 3+3 and reverse 6-in-line guitar configurations. Whether you're in the studio or on stage, experience seamless string changes with the effortless locking cam system. Simply thread your string through, hand-tension, and tune. The 18:1 gear ratio ensures that your instrument remains in tune, even through the most demanding sessions. Elevate your playing with the trusted quality that Grover delivers, backed by a century of craftsmanship and a lifetime warranty.
Key Features:
- Innovative internal cam system for easy string locking
- 18:1 gear ratio for precise tuning stability
- Compact design with smaller buttons for enhanced finger space
- Suitable for 3+3 and reverse 6-in-line guitars
- Chrome finish for durability and style
- Set includes 3 left and 3 right tuners
- Includes 5/8" washers, bushings, and wood screws
- Grover's lifetime no-fault warranty
Product specs
| Intended Instrument | Guitar |
| Configuration | 3+3 |
| Finish | Chrome |
| Locking | Yes |
| Gear Ratio | 18:1 |
| Peg Diameter | 0.390" (peg hole) |
FAQs
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How do Grover 406 Series Rotomatics Locking Tuners improve tuning stability?
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These tuners feature a locking mechanism that securely clamps the string in place, reducing slippage and improving overall tuning stability, especially during heavy playing or string bending.
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Are Grover 406 Series Rotomatics Locking Tuners compatible with all guitars?
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They are designed for guitars with a 3+3 headstock configuration. Ensure your guitar's peg hole diameter matches the 0.390" specification for proper fit.
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What is the gear ratio of Grover 406 Series Rotomatics Locking Tuners and why does it matter?
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These tuners have an 18:1 gear ratio, providing precise tuning adjustments. This higher ratio allows for finer control when tuning each string, enhancing accuracy.
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Do Grover 406 Series Rotomatics Locking Tuners add extra weight to the guitar?
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Locking tuners can add some weight to the headstock, but the Grover 406 Series is designed to minimize this impact, ensuring balanced playability while enhancing tuning stability.
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What finish do the Grover 406 Series Rotomatics Locking Tuners have?
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These tuners come in a chrome finish, offering a sleek and durable appearance that complements a wide range of guitar styles.
Videos
Guitar World
Grover Locking Tuners - demo
Reviews
PROS
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Direct drop-in fit for many PRS SE guitars, no drilling needed
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Improves tuning stability, especially with tremolo use
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High gear ratio allows for precise tuning adjustments
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Easier and quicker string changes with locking mechanism
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Lighter weight compared to some stock tuners
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Smooth operation, comparable to high-end tuners like Schaller
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Durable build with lifetime warranty
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Unique auto-locking mechanism for secure string hold
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Compatible with a range of guitar models, from PRS to Gretsch
CONS
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Instructions on stringing and locking are unclear
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Some users find the locking mechanism finicky
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Not as smooth as some high-end tuners
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Aesthetic mismatch with original knobs on some guitars
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Grover 406 Series Rotomatics Locking Tuners.
Mods and upgrades
Features and functionality
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Grover 406 Series Rotomatics do not require thumbwheel adjustments, maintaining the original look of Grover tuners while providing locking functionality.
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Grover Mini Locking Rotomatics feature an internal-cam system that locks strings automatically as you tune, promoting faster string changes and improved tuning stability.
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The 18:1 tuning ratio on Grover 406 Series provides precise fine-tuning capability, beneficial for maintaining accuracy with tremolo use.
Source
Comparisons
4.5 out of 5
Based on 0 Reviews and 2 Ratings
Genre Usage
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