Description
The TonePros GKH330 is part of TonePros' Professional Upgrade Tuner series, pairing a vintage "butterscotch" plastic keystone button with a modern 20:1 precision gear ratio. It's built as a drop-in upgrade for most 3-per-side headstocks, fitting without any modification to the guitar.
Key Benefits
- 20:1 gear ratio delivers smoother, more precise tuning than stock vintage-style tuners
- Upgraded steel inner components add durability over standard tuner mechanisms
- Vintage butterscotch plastic keystone button gives a classic, period-correct look
- Drop-in fit for most guitars with standard 3x3 tuner spacing — no drilling or reaming required
Features
- ZMAC body with upgraded steel inner components
- Vintage plastic keystone button, butterscotch finish
- Vintage flat-top post styling
- 20:1 performance gear ratio
- 3L + 3R configuration (set of 6)
Specifications
- Gear ratio: 20:1
- Material: ZMAC body w/ steel inner components
- Bushing size: 10mm
- Post height: 28mm
- Button: Vintage plastic keystone (butterscotch)
- Post style: Vintage flat-top
- Configuration: 3L + 3R




