Schaller GrandTune Single Guitar Tuning Machine
The Schaller GrandTune Single provides a refined combination of vintage styling, pinpoint tuning accuracy, and velvet-smooth performance. Built with an open-gear architecture and precision worm gear, this machine head operates without synthetic coatings to deliver uninhibited resonance and long-term acoustic stability.
Featuring an ultra-precise 1:18 gear ratio, the mechanism guarantees exact intonation and effortless control. Its wear-free construction, sealed joints, and non-coated contact surfaces ensure zero stick-slip friction, delivering maintenance-free performance that endures alongside your finest instruments.
Engineered to standard instrument dimensions for straightforward replacement and installation, it incorporates countersunk mounting screw holes to establish a rigid connection and superior tone transfer.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Single Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Design | Open Gear |
| Product Weight | 0.11 lb |
| 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 (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 | 2 countersunk screws (M2.2 x 11) included per single unit |
| Press-in Bushing | Hexagonal press-in bushing (for solid headstocks, OD 0.35 in, ID 0.24 in, fits 0.24 in string post) |
