Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine features a refined 1:18 gear ratio that ensures precise, velvety-smooth tuning and exceptional stability. Precision CNC-machined components with a self-locking drive provide sensitive, even adjustments for optimal performance.
Crafted with premium brass string posts fitted precisely into the housing, this tuning machine delivers unmatched tuning stability and wear resistance. Every closed unit is permanently lubricated with Schaller special grease, making it completely maintenance-free over years of use.
An innovative stepped M6 flanged washer centers the string post securely through the banjo bolt without requiring a stepped peghead bore, eliminating tilting torque and protecting mounting hardware. Designed with identical mounting dimensions to its predecessor, it serves as a direct, modification-free replacement.
| Brand | Schaller |
| Model | M6 90 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) driving surface |
| Lubrication | Permanently lubricated with Schaller special grease |
| Weight per Single Tuner with Button (Small / Large) | 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 |
