Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine continues a legendary standard in enclosed tuners with modern precision and engineering. Featuring an advanced 1:18 gear ratio, it delivers exceptionally smooth, accurate, and stable tuning performance for discerning players.
Every component is CNC-machined to precise tolerances and finished with a durable surface treatment. High-grade brass string posts are precision-fitted into the housing to maximize wear resistance and ensure permanent tuning stability.
The innovative stepped M6 flanged washer centers the string post securely without requiring a stepped headstock hole, eliminating tilt and relieving stress on mounting screws. Permanently lubricated with Schaller special grease, these tuners offer completely maintenance-free operation.
| Brand | Schaller |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| Product Weight | 0.79 lb |
| Weight with Button per Single Tuner (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 |
| Button Bore Hole | Diameter 0.17 in with 0.14 in driving surface |
| Post Material | Brass |
| Lubrication | Schaller special grease (maintenance-free) |




















