Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single Guitar Tuning Machine combines classic vintage open-gear aesthetics with modern engineering. Engineered with an 1:18 gear ratio, it provides exact tuning precision, velvety smooth performance, and lasting durability. The absence of synthetic coatings allows optimal resonance transfer to your instrument.
Crafted with ultra-precise contact surfaces and permanently locked, sealed screw joints, this tuner delivers wear-free, maintenance-free operation over long-term use. Countersunk screw holes ensure secure mounting and direct acoustic transmission.
Designed to fit standard production instrument dimensions, this tuner serves as an ideal upgrade or direct replacement for solid and slotted headstock guitars.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight per Single Tuner | 0.6 oz (Koa), 0.7 oz (Perloid), 0.7 oz (Galalith, Ebony), 0.7 oz (Snakewood), 0.9 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) |





















