Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single Guitar Tuning Machine offers an advanced synthesis of vintage open-gear aesthetics and modern precision engineering. Featuring a refined 1:18 gear ratio, it provides exceptionally smooth and accurate tuning stability across various playing styles.
Constructed without synthetic polymer coatings, the ultra-precise contact surfaces ensure optimal acoustic resonance and wear-free operation. Permanently locked, sealed screw joints deliver maintenance-free reliability and long-lasting durability over years of regular use.
Designed with standard instrument dimensions in mind, this tuning machine allows straightforward installation and direct replacement on solid or slotted headstocks. Recessed screw holes guarantee a secure, resonant fit directly against the instrument wood.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Gear Ratio | 1:18 |
| Weight per Single Tuner | 0.63 oz (Koa), 0.67 oz (Perloid), 0.71 oz (Galalith, Ebony), 0.74 oz (Snakewood), 0.88 oz (Butterbean) including bushing |
| Button Dimensions (WxHxD) | 0.80 x 0.54 x 0.41 in (Butterbean), 0.69 x 0.54 x 0.24 in (all other buttons) |
| Mounting Screws Included | 2 x countersunk mounting screws (M2.2 x 11 mm) |
| Bushing Specifications | Hexagonal press-in bushing, 0.35 in outer diameter, 0.24 in inner diameter |
