Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 features an advanced 1:18 gear ratio that delivers exceptional tuning precision and velvety-smooth operation. All components are CNC-machined and finished to exacting tolerances, utilizing a self-locking drive mechanism to guarantee consistent and stable tuning.
Equipped with high-grade brass posts precisely fitted into the housing, this tuning machine provides maximum wear resistance and pitch stability. The stepped M6 flanged washer reliably centers the string post without requiring stepped headstock drilling, effectively eliminating tilt torque and relieving stress on mounting screws.
Permanently lubricated with Schaller special grease, the enclosed housing is completely maintenance-free. With identical mounting dimensions to its legacy predecessor, it offers seamless replacement without requiring instrument modifications.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in. (4.2 mm) with driving surface 0.14 in. (3.6 mm) |
| Weight | 0.79 lb |
| Weight per Single Tuner with Button (Small/Large) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw |
| Lubrication | Schaller special grease permanent lubrication |




















