Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune combines classic open-gear vintage aesthetics with precise tuning performance and ultra-smooth operation. Designed with an open gear and worm gear construction, it provides exceptional tuning stability and acoustic resonance on any instrument.
Featuring an 18:1 gear ratio, this machine head offers precise adjustments and long-lasting durability. The precision-fit contact surfaces eliminate synthetic polymer coatings, ensuring wear-free operation, optimal stick-slip interaction, and pure tonal transfer.
Engineered to match standard production instrument dimensions, it allows for straightforward installation or replacement. Permanently locked and sealed screw joints provide maintenance-free longevity, while countersunk mounting holes guarantee a solid hold and secure fit.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | GrandTune Single (GT-Single) |
| 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) | 0.8 x 0.5 x 0.4 in (Butterbean), 0.7 x 0.5 x 0.2 in (all other buttons) |
| Included Hardware | 2 countersunk mounting screws (M2.2 x 11), 1 hexagonal press-in bushing (solid headstock) |
