Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single delivers a refined fusion of classic vintage styling, pinpoint tuning accuracy, and velvet-smooth operation. Designed as an open-gear tuner with an exposed worm gear mechanism, it provides an uncompromising 1:18 gear ratio for long-lasting, precise adjustments.
Crafted without synthetic polymer coatings, this tuning machine features ultra-precise contact surfaces and permanently sealed, locked screw connections to ensure wear-free, maintenance-free performance. Its acoustic coupling integrates directly with the headstock for maximum resonance and tone transfer.
Engineered to standard instrument dimensions for straightforward installation and retrofitting, it features countersunk mounting screw holes to provide solid stability. Included mounting hardware ensures precise alignment and optimal mechanical stability on solid headstock configurations.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Product Weight | 0.7 lb |
| Single Tuner Weight | 0.6 oz (Koa), 0.7 oz (Perloid, Galalith, Ebony, Snakewood), 0.9 oz (Butterbean) |
| Button Dimensions (WxHxD) | 0.8 x 0.5 x 0.4 in (Butterbean), 0.7 x 0.5 x 0.2 in (Other buttons) |





















