Schaller GrandTune Guitar Tuning Machine
The Schaller GrandTune pairs sophisticated vintage aesthetics with precise tuning performance and ultra-smooth operation. Designed with an open-gear mechanism and precision worm drive, it incorporates an 18:1 gear ratio to deliver exceptional tuning accuracy, fine adjustments, and long-term stability across various guitar styles.
Engineered without synthetic or polymer coatings, the tuner facilitates complete structural resonance and direct sound transfer to the instrument. Its ultra-precise contact surfaces eliminate stick-slip friction while permanently sealed, locked screw connections provide a completely wear-free and maintenance-free experience over years of heavy playing.
Tailored to standard production headstock dimensions, this tuner allows for clean direct installations and vintage upgrades. Recessed screw mounting points provide secure mechanical anchoring directly to the headstock, promoting sustained acoustic vibration and reliable string pitch under standard tension.
| Brand | Schaller |
| Model | GrandTune (GT-Single) |
| Product Type | Guitar Tuning Machine |
| 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 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 (other buttons) |
| Product Weight | 0.11 lb |
| Configuration | Open Gear |
| Mounting Hardware Included | 2 mounting screws (M2.2 x 0.43 in), 1 hexagonal press-in bushing (0.35 in OD) for solid headstocks |
