Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 represents the evolution of a legendary tuning machine design, setting high standards for enclosed tuners since its original release in 1966. Engineered with an upgraded 1:18 gear ratio, it provides unmatched precision, velvet-smooth turning, and exceptional tuning stability. High-precision CNC machining and high-grade surface finishing ensure consistent and sensitive operation across all components.
Built with premium brass string posts precision-fitted into the housing, the M6 135 eliminates wear and maximizes long-term reliability. The innovative stepped M6 flanged washer centers the string post securely through the threaded bushing without requiring step-drilled headstock holes. This structural design eliminates tilting moments and relieves pressure from both the post and the rear mounting screw.
Maintaining identical installation dimensions to its predecessor, the M6 135 serves as a direct drop-in replacement with no headstock modifications required. Every sealed tuner unit is permanently lubricated with Schaller special grease for completely maintenance-free performance throughout its lifespan.
| Brand | Schaller |
| Model | M6 135 |
| SKU | 10020223.03.53 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight per Single Tuner with Button (Small/Large) | Metal (1.3 oz / 1.3 oz), Perloid (1.1 oz / 1.1 oz), Ebony (1.1 oz / 1.1 oz) including threaded bushing |
| Button Hole Diameter | 0.17 in diameter with 0.14 in drive flat |
| Product Weight | 0.79 lb |
| Lubrication | Permanently lubricated with Schaller special grease |
| Post Material | High-grade brass |
