Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets a benchmark for enclosed tuning mechanisms, combining classic heritage with refined engineering. Designed with an advanced 1:18 gear ratio, it ensures precise, velvety-smooth action and exceptional tuning stability. Each component is CNC-machined to exact tolerances with surface finishing for smooth, reliable operation.
Featuring high-grade brass posts engineered directly into the housing, this tuning machine delivers wear-free performance and superior longevity. The innovative stepped M6 flanged washer reliably centers the string post via the banjo bolt, eliminating tipping torque and removing strain from both the post and mounting screws without requiring stepped headstock drilling.
All enclosed internal mechanisms come permanently lubricated with Schaller special grease for completely maintenance-free performance. Designed to match the exact mounting dimensions of its predecessor model, it serves as a seamless drop-in replacement without requiring guitar modifications.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight per Single Tuner | Metal: 1.27–1.34 oz (36–38 g), Perloid/Ebony: 1.06–1.09 oz (30–31 g) |
| Product Weight | 0.13 lb |
| Lubrication | Maintenance-free Schaller special grease |
