Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune combines refined vintage aesthetics with precise tuning response and ultra-smooth operation. Designed as an open-gear tuner with an optimized worm gear mechanism, it delivers dependable tuning stability and superior resonance without relying on synthetic coatings.
Featuring an 18:1 gear ratio, this machine head provides accurate pitch adjustment and long-lasting durability. Ultra-precise contact surfaces eliminate stick-slip motion and wear, while permanently locked and sealed screw joints ensure completely maintenance-free performance on your instrument.
Built to standard instrument dimensions for straightforward installation and replacement, each tuner includes countersunk mounting screw holes for firm anchorage and optimal acoustic transfer.
| Brand | Schaller |
| Model | GrandTune Single (GT-Single) |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 18:1 |
| 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 press-in bushing |
| Button Dimensions (W x H x D) | 0.80 x 0.54 x 0.41 in (Butterbean), 0.69 x 0.54 x 0.24 in (all other buttons) |
| Mounting Hardware Included | 2 countersunk mounting screws (M2.2 x 11), 1 hexagonal press-in bushing (for solid headstocks) |
