Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers exceptional tuning accuracy and velvety-smooth operation, equipped with a precise 1:18 gear ratio. Continuing the legacy of the original 1966 design, this enclosed tuner integrates modern engineering refinements to optimize string tension control and instrument performance.
Precision CNC-machined components and solid brass posts ensure long-term wear resistance and outstanding pitch stability. Sealed housing permanently lubricated with Schaller special grease guarantees maintenance-free longevity and consistent gear engagement.
An innovative stepped M6 flanged washer centers the string post securely through the hollow screw, removing tilt torque and eliminating the need for a stepped peghead bore while maintaining the standard mounting dimensions of its predecessor.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 135 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| String Post Material | High-Grade Brass |
| Manufacturing Process | CNC-machined |
| Lubrication | Permanently lubricated with Schaller special grease |
| Mounting Compatibility | Direct replacement for previous M6 135 models |
| Weight with Button (Per Unit) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw |
| Button Hole Bore | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Weight | 0.79 lb |




















