Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune combines stylish vintage open-gear architecture with state-of-the-art tuning precision and ultra-smooth performance. Built with an open gear and worm design, it delivers an uncompromising 1:18 gear ratio for exceptionally precise tuning stability and longevity.
Crafted without synthetic polymer coatings, the GrandTune creates a perfectly resonating contact unit on your instrument. The ultra-precise component fits and contact surfaces deliver permanent stick-slip friction resistance without wear or aging over time.
Designed around standard production guitar headstock dimensions for straightforward installation and replacement, this tuning machine features permanently locked, sealed screw joints and countersunk screw holes to ensure firm seating and maximum resonance transfer.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Model Number | GT-Single |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Tuning Machine Type | Open Gear |
| 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 (WxHxD) | 0.80 x 0.54 x 0.41 in (Butterbean), 0.69 x 0.54 x 0.24 in (all other buttons) |
| Included Bushing Outer Diameter | 0.35 in (8.8 mm) |
| Mounting Screws | 2 x Countersunk Screws (M2.2 x 11) |
