Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers refined performance and precise tuning comfort with its advanced 1:18 gear ratio. All components are CNC-machined to exact tolerances and surface-finished, featuring high-grade brass posts engineered for wear-free longevity and exceptional tuning stability.
Equipped with the innovative stepped M6 flanged washer, this tuning machine simplifies installation by reliably centering the string post via the banjo bolt. This eliminates the need for stepped peghead reaming, removes tilting torque, and relieves strain from both the post and rear mounting screws.
Designed to match the original footprint for direct drop-in replacement, each enclosed tuner is permanently lubricated with specialized Schaller grease for smooth, maintenance-free operation.
| Brand | Schaller |
| Model | M6 90 |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| String Post Material | Brass |
| Weight per Tuner (Small / Large Button) | Metal: 1.27 oz / 1.34 oz (36 g / 38 g); Perloid: 1.06 oz / 1.09 oz (30 g / 31 g); Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) |
| Product Weight | 0.79 lb (0.36 kg) |
