Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single combines vintage-inspired open-gear architecture with state-of-the-art precision engineering. Designed with an ultra-precise 1:18 gear ratio, it ensures smooth, velvety tuning and exceptional pitch stability without the need for synthetic polymer coatings.
Featuring permanently locked and sealed screw connections, the GrandTune provides wear-free operation and optimal resonant acoustic coupling. Its precise contact surfaces and countersunk mounting holes ensure seamless sound transmission directly into the headstock.
Engineered to standard instrument dimensions for effortless installation and retrofitting, this tuning machine delivers enduring performance and refined craftsmanship for premium acoustic and classical guitars.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Design | Open Gear |
| Weight | 0.68 lb |
| Single Tuner Weight | 0.63 oz (Koa), 0.67 oz (Perloid), 0.71 oz (Galalith, Ebony), 0.74 oz (Snakewood), 0.88 oz (Butterbean) |
| Button Dimensions (WxHxD) | 0.8 x 0.5 x 0.4 in. (Butterbean), 0.7 x 0.5 x 0.2 in. (All other buttons) |
| Bushing Specifications | Hexagonal press-in bushing 0.35 in. outer diameter (0.24 in. inner diameter for 0.24 in. post) |
| Included Mounting Screws | 2 x M2.2 x 11 mm per single tuner |
