Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single represents an advanced fusion of classic vintage styling, precise tuning behavior, and velvet-smooth performance. Crafted as a perfected open-gear tuning machine, it features an open gear with a precision-threaded worm mechanism that delivers exceptional tuning stability and tactile response.
Equipped with an ultra-precise 1:18 gear ratio, this tuning machine provides unmatched accuracy and longevity for discerning musicians. By omitting synthetic polymer coatings, the unit forms a perfectly resonating entity on any instrument headstock, allowing vibration and acoustic tone to transfer unimpeded.
Engineered to standard instrument dimensions for straightforward installation and replacement, each machine features permanently locked, sealed screw joints for zero-maintenance operation. Countersunk mounting holes provide secure anchorage and direct acoustic transfer.
| Brand | Schaller |
| 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 0.54 x 0.41 in (Butterbean), 0.69 x 0.54 x 0.24 in (all other buttons) |
| Item Weight | 0.11 lb |
| Included Mounting Screws | 2 x Countersunk Screws (M2.2 x 11) |
| Included Bushing | 1 x Hexagonal Press-In Bushing (0.35 in outer diameter, 0.24 in inner diameter for solid headstocks) |
