Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine offers exceptional precision and tuning comfort with an upgraded 1:18 gear ratio. Engineered as the modern evolution of the legendary original closed tuner, it delivers smooth and velvety operation alongside maximum tuning stability.
Every component is high-precision CNC-machined and surface-finished, featuring self-locking mechanics and durable brass string posts perfectly fitted into the housing to eliminate wear. The closed housing comes permanently lubricated with Schaller special grease for entirely maintenance-free performance.
Equipped with an innovative stepped M6 flanged washer with a 0.39 in (10 mm) base diameter, this design reliably centers the string post through the banjo bolt without requiring a stepped headstock bore. The M6 135 matches the exact mounting dimensions of its predecessor for effortless, drop-in replacement without instrument modification.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Product Weight | 0.79 lb |
| Weight per Single Tuner with Button (Small / Large) | Metal: 1.27 oz / 1.34 oz (36 g / 38 g), Perloid: 1.06 oz / 1.09 oz (30 g / 31 g), Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) including threaded bushing |
| Button Borehole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Flanged Washer Diameter | 0.39 in (10 mm) |
| String Post Material | Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
