KAISH Chrome 3+3 Locking Tuners 21:1 for LP/Les Paul/SG Guitars

Our review of the KAISH Chrome 3+3 Locking Tuners finds these tuning machines best suited for players who want a straightforward upgrade to improve tuning stability and make string changes faster. They offer a clear, practical benefit: a 21:1 gear ratio and a locking mechanism that reduce slippage and keep strings secure, which is immediately noticeable during bends and heavier playing. Installation is simple and they drop in on most modern guitars with 13/32' (10mm) tuner holes and a 90 degree mounting hole, so many users will see better performance without modifying their instrument.

Key Features

• 21:1 tuning ratio: Provides finer control and more precise tuning adjustments than lower ratio tuners, helping you hit pitches reliably.
• Locking mechanism: Locks strings at the post to prevent slippage and reduce the number of winds, speeding up string changes and improving stability.
• Vintage keystone buttons: The plastic keystone buttons maintain a classic look while remaining comfortable to grip for tuning.
• Compatibility: Designed for 3-per-side guitars with modern 13/32' (10mm) tuner holes and a 90 degree mounting hole, offering a near drop-in upgrade on many LP/Les Paul/SG/ES and acoustic guitars.
• Easy installation: Tuners and all mounting hardware arrive packed in foam, making the install process straightforward for home techs and gigging musicians.
• Improved tuning longevity: The combination of high ratio gearing and locking posts helps guitars stay in tune longer during performance and bending.

Who It's For

These locking tuners are aimed at players of three-per-side electric guitars and many acoustics who want better tuning accuracy and quicker string changes without major modification. They suit hobbyists, gigging musicians, and anyone with non-locking tremolo setups who bends strings frequently and needs added security against slippage.

Players who should look elsewhere include guitars with 45 degree fixing tabs or vintage machines with nonstandard bushing sizes; these tuners do not fit 45 degree fixing tags and may require different bushings for older instruments. Also, those seeking metal vintage-style buttons may prefer a different cosmetic option.

Pros & Cons

Pros

• Locking posts make string changes fast and reduce slipping for more consistent tuning.
• High 21:1 ratio gives precise tuning control and better stability under heavy bending.
• Well packed kit with mounting hardware makes installation easy for DIY setups.

Cons

• Plastic keystone buttons may not match players seeking all-metal vintage styling.
• Not compatible with 45 degree fixing tag mount styles found on some guitars.

Specifications

Configuration	3+3 locking tuners
Gear ratio	21:1
Bushing hole size	Modern 13/32' (10mm)
Mounting hole	90 degree fixing hole (not 45 degree)
Buttons	Plastic vintage keystone
Includes	Tuners and all mounting hardware packed in foam box

Our Verdict

For most modern LP/Les Paul/SG/ES players and compatible acoustic owners, these KAISH locking tuners are a practical, cost-effective upgrade that delivers tangible tuning stability and easier string changes. They are good value for anyone wanting improved performance without invasive modification, though those needing metal vintage buttons or 45 degree tag compatibility should consider alternatives.

Frequently Asked Questions

Will these fit my three-per-side Les Paul?
If your Les Paul has modern 13/32' (10mm) tuner holes and a 90 degree mounting hole, these should fit as a near drop-in upgrade.

How do the locking tuners improve string changes?
The locking thumb screw secures the string at the post so you need fewer winds, letting you change strings faster and with less chance of slipping.

Are these compatible with guitars that have 45 degree fixing tags?
No, these tuners do not fit 45 degree fixing tag mount styles and require a 90 degree fixing hole.