Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune represents the ultimate fusion of refined vintage design, exact tuning stability, and velvet-smooth performance. Crafted as a perfected open-gear tuning machine, it features an open gear and worm gear mechanism that optimizes acoustic resonance across any stringed instrument.
Featuring an 1:18 gear ratio, this tuning machine provides precise and durable tuning action without synthetic coatings. Its ultra-precise contact surfaces eliminate wear and stick-slip aging, ensuring permanent performance with factory-locked, sealed screw fittings that never require maintenance.
Engineered to standard instrument dimensions for effortless replacement or new construction, each tuner includes countersunk screw holes to ensure firm coupling and exceptional sound transmission.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| SKU | 10511023.42.12 |
| Gear Ratio | 1:18 |
| Weight per Single Tuner | 0.63 oz (Koa), 0.67 oz (Pearloid), 0.71 oz (Galalith, Ebony), 0.74 oz (Snakewood), 0.88 oz (Butterbean) including bushing |
| Total Weight | 0.67 lb |
| 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) |
| Design | Open Gear |
