Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single delivers a refined blend of classic vintage aesthetics and state-of-the-art tuning precision. Engineered with an open gear and worm drive mechanism, it provides an exact 1:18 gear ratio for smooth, velvety, and dependable tuning performance.
Crafted without synthetic polymer coatings, this tuning machine features ultra-precise fits and contact surfaces that promote optimal resonance and wear-free operation across the life of your instrument. Sealed and permanently locked screw joints ensure maintenance-free reliability.
Designed to standard instrument dimensions for effortless retrofitting and installation, it incorporates countersunk screw holes that ensure firm mounting and maximum acoustic transfer to the headstock.
| Brand | Schaller |
| Model | GrandTune Einzelmechanik (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 | 0.8 x 0.5 x 0.4 in (Butterbean), 0.7 x 0.5 x 0.2 in (all other buttons) |
| Product Weight | 0.11 lb |
| Construction | Open Gear Mechanism |
| Mounting Type | Screw-Mount with Press-In Bushing |





















