Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines stylish vintage open-gear architecture with modern precision engineering. Built with an open gear and worm design, it provides exceptionally smooth action and precise tuning stability without synthetic polymer coatings for optimal acoustic resonance.
Featuring a 1:18 gear ratio, this single tuning machine ensures exact, velvety adjustments and enduring durability. Permanently locked, sealed screw joints and ultra-precise contact surfaces eliminate wear and aging, maintaining peak performance throughout the lifetime of your instrument.
Designed to fit standard instrument headstock dimensions for straightforward installation and replacement, it comes equipped with countersunk screw holes that ensure firm anchoring and clean resonance transmission.
| 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 (W x H x D) | 0.80 x 0.54 x 0.41 in (Butterbean), 0.69 x 0.54 x 0.24 in (all other buttons) |
| Mounting Type | Open Gear / Screw-mount |
