Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines refined vintage styling with precise tuning response and smooth operation. Designed as an open-gear tuning machine with a classic worm gear architecture, it delivers exceptional resonance and tuning stability across acoustic and electric instruments.
Featuring an 18:1 gear ratio, this tuning machine provides precise control and long-lasting durability. The precision-fit contact surfaces operate entirely without synthetic polymer coatings, avoiding stick-slip friction, wear, and aging while maintaining acoustic coupling with the instrument.
Equipped with permanently locked, sealed, and joined screw fittings, the tuning machine ensures maintenance-free performance. Its mounting dimensions conform to standard instrument specifications, allowing straightforward installation and replacement on solid headstocks.
| Brand | Schaller |
| Model | GrandTune (GT-Single) |
| SKU | 10510170.42.31 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Configuration | Single Tuning Machine |
| Bushing Type | Hexagonal Press-in Bushing (0.35 in Outer Diameter) |
| Mounting Screws Included | 2 x Countersunk Screws (M2.2 x 11) |
| Weight per Machine | 0.04 lb to 0.06 lb (depending on button material) |
| Product Weight | 0.11 lb |
