Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines stylish vintage design, precise tuning, and ultra-smooth performance. It represents a perfected open-gear tuning machine featuring an open gear and worm gear assembly designed for demanding musicians.
Featuring an 1:18 gear ratio, it delivers uncompromising tuning precision and long-lasting durability. The absence of synthetic polymer coatings ensures optimal resonance with instrument woods, providing wear-free interaction and reliable tone.
Equipped with permanently locked, sealed, and aligned screw connections, this tuner delivers maintenance-free operation. Countersunk screw holes ensure secure mounting and flawless vibrational coupling across standard acoustic and electric headstocks.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight per Single Tuner | 0.04 lb (Koa), 0.04 lb (Perloid), 0.04 lb (Galalith, Ebony), 0.05 lb (Snakewood), 0.06 lb (Butterbean) including bushing |
| 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 |
| Overall Product Weight | 0.11 lb |





















