Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single delivers a refined blend of classic open-gear vintage aesthetics and modern precision engineering. Built with exposed gears and a worm drive, this tuning machine eliminates synthetic coatings to maximize natural instrument resonance and acoustic performance.
Featuring a precise 1:18 gear ratio, it provides velvety smooth tuning action, high accuracy, and lasting tuning stability. Ultra-precise fittings and wear-free contact surfaces ensure consistent, zero-degradation performance over extended play.
Designed to fit standard production instrument dimensions for seamless installation, each unit incorporates permanently sealed joints and countersunk mounting screw holes for firm anchorage and optimal tonal transfer.
| Brand | Schaller |
| Model | GrandTune Einzelmechanik (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Design | Open Gear |
| Weight per Single Tuner | 0.63 oz (Koa), 0.67 oz (Perloid), 0.71 oz (Galalith, Ebony), 0.74 oz (Snakewood), 0.88 oz (Butterbean) including bushing |
| Button Dimensions (W x H x D) | 0.80 x 0.54 x 0.41 in (Butterbean), 0.69 x 0.54 x 0.24 in (all other buttons) |
| Product Weight | 0.11 lb |





















