Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines vintage aesthetic design with precise tuning action and smooth performance. This open-gear tuning machine features a worm gear architecture built to enhance instrument resonance without synthetic coatings.
With a precise 1:18 gear ratio, it ensures fine tuning accuracy and long-term durability. The ultra-precise fittings provide excellent friction-free movement without aging or wear over time.
Equipped with permanently locked and sealed screw joints, this tuning machine requires zero maintenance. Countersunk screw holes ensure a firm hold and optimal acoustic sound transmission.
| Brand | Schaller |
| Model | GrandTune (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight per Single Machine | 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 (W x H x D) | 0.8 x 0.5 x 0.4 in (Butterbean), 0.7 x 0.5 x 0.2 in (all other buttons) |
| Weight | 0.11 lb |



















