Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers outstanding tuning precision and velvety-smooth operation with its refined 1:18 gear ratio. Engineered with high-precision CNC machining and surface finishing, every component ensures sensitive, even, and reliable adjustment for discerning musicians.
Featuring high-grade brass string posts precisely fitted into the enclosed housing, this tuner maximizes tuning stability and eliminates mechanical wear. The integrated step washer guarantees trouble-free headstock installation and precise post alignment without requiring stepped peghead holes.
Permanently lubricated with Schaller special grease for maintenance-free performance, the M6 135 shares identical mounting dimensions with its classic predecessor, allowing for seamless drop-in replacement and effortless upgrades.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | High-Grade Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight | 0.13 lb |
| Lubrication | Schaller Special Grease (Maintenance-Free) |


















