Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets the benchmark for closed guitar tuning machines with an upgraded 1:18 gear ratio that delivers exceptional precision and smooth, velvety tuning action. Every component is CNC-machined to precise tolerances and surface-finished, utilizing a self-locking drive for consistent and lasting tuning stability.
Equipped with high-grade brass string posts engineered precisely into the housing, these tuners provide optimal wear resistance and stability. The innovative stepped M6 flanged washer reliably centers the string post through the banjonut, eliminating tilting moments and avoiding the need for stepped peghead holes.
Permanently lubricated with Schaller special grease for completely maintenance-free operation, the M6 90 shares the exact footprint and installation dimensions of its predecessor for effortless, modification-free retrofitting.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 90 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Weight (Single Tuner with Button) | Metal (1.27 oz / 1.34 oz), Pearloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Post Material | Brass |
| Lubrication | Special Schaller grease, maintenance-free |
