Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers outstanding precision and smooth tuning comfort with an upgraded 1:18 gear ratio. Engineered with high-precision CNC-machined components and self-locking drive technology, it ensures stable and sensitive tuning performance.
Crafted with premium brass string posts precisely fitted into sealed housings, these tuning machines provide maximum tuning stability and wear resistance. Permanent lubrication with specialized Schaller grease ensures entirely maintenance-free operation over long-term use.
Featuring the innovative stepped M6 flanged washer, the system centers the string post reliably without requiring stepped headstock boreholes. The M6 135 shares identical installation dimensions with its predecessor model for direct, modification-free replacement.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight | 0.8 lb |
| Weight per Individual Tuner (Small/Large Button) | 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 Borehole | 0.17 in diameter with 0.14 in drive flat |
| String Post Material | Brass |
| Housing Type | Closed / Sealed |
| Lubrication | Permanent lubrication with special grease |


















