Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single combines vintage styling with modern precision and smooth tuning performance. Engineered as a perfected open-gear tuning machine, it features an exact 1:18 gear ratio that delivers exceptional tuning stability and long-lasting durability.
Crafted without synthetic polymer coatings, the ultra-precise contact surfaces ensure optimal stick-slip performance and unhindered natural acoustic resonance. Permanently locked, sealed, and joined components provide maintenance-free operation that withstands wear and aging across decades of playing.
Designed to fit standard production instrument specifications, this tuner allows straightforward installation and replacement. Countersunk screw holes ensure secure mounting and optimal sound transmission to the headstock.
| 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 press-in 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) |
| Mounting Screws Included | 2 x countersunk mounting screws (M2.2 x 11 mm) |
| Bushing | 1 x hexagonal press-in bushing (outer diameter 0.35 in, inner diameter 0.24 in, for 0.24 in posts) |
