Locking Keystone Tuners 3+3 (Black) – 18:1 – Drop-In for Most Electric/Acoustic Guitars (10mm / 25/64" holes)

Give your guitar a vintage-inspired look without sacrificing modern performance. These locking keystone tuners bring the classic keystone button aesthetic into the modern era — pairing timeless style with a precise 18:1 gear ratio and a locking mechanism that keeps your strings locked in place, exactly where you put them. Designed as a direct drop-in replacement for most 3x3 headstocks on right-handed electric and acoustic guitars with modern 10mm (25/64") tuning peg holes and a 45° mounting screw hole.

Please note: these will NOT fit guitars with 90° "fixing tag" mounting holes.

For many 3x3 guitars, this is a true drop-in upgrade — delivering a clean black finish and a noticeable improvement in tuning stability without the need for drilling or modification.

Why you'll love them:

• No more string slippage – The locking mechanism cinches your strings firmly in place, keeping your guitar in tune longer — even through aggressive bends or heavy tremolo use.
• Smooth & precise tuning – An 18:1 gear ratio gives you finer, more controlled adjustments than standard lower-ratio tuners, so you can dial in your pitch with confidence.
• Classic look, modern function – The keystone button design adds a vintage character that looks right at home on everything from Les Paul-style guitars to acoustics, all finished in sleek black.
• Simple string changes – Feed the string through the post, wrap it once, and lock it down with the thumb screw. Fewer winds, faster changes, and no slipping.

What's included:
Full set of 3+3 locking tuners (six total — three per side) plus all necessary mounting hardware, packaged securely in a protective foam box.