Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune combines stylish vintage aesthetics with modern, ultra-precise tuning performance and velvety smooth action. Built with an open gear and worm architecture, it delivers exceptional durability and classic style for acoustic, classical, electric, and archtop guitars.
Featuring an 1:18 gear ratio, this machine head offers meticulous control and outstanding pitch stability. Constructed without synthetic polymer coatings, it enables direct resonance with the instrument while providing wear-free, frictionless performance over years of use.
Equipped with permanently locked, sealed screw joints and countersunk mounting holes, it ensures maintenance-free operation, optimal structural support, and reliable sound transmission for standard factory and custom headstocks.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight per Unit | 0.63 oz (Koa), 0.67 oz (Perloid), 0.71 oz (Galalith, Ebony), 0.74 oz (Snakewood), 0.88 oz (Butterbean) |
| 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) |
| Bushing Included | 1 x hexagonal press-in bushing (OD 0.35 in, ID 0.24 in) for solid headstocks |
