Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine features a refined 1:18 gear ratio for precise, velvet-smooth tuning and exceptional stability. Precision CNC-machined components with high-grade surface finishing ensure a self-locking drive and consistent performance across all playing conditions.
Equipped with high-grade brass string posts engineered for wear-free durability, this enclosed tuner is permanently lubricated with proprietary Schaller grease for entirely maintenance-free operation. The innovative stepped M6 flanged washer reliably centers the string post without requiring a stepped headstock hole, eliminating tilting torque and reducing stress on mounting hardware.
Featuring the exact installation dimensions of its classic predecessor, the M6 135 offers direct, drop-in replacement capability without any headstock modifications.
| Brand | Schaller |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| Weight | 0.8 lb |
| Weight per Single Tuner with Button (Small/Large) | Metal (0.08 lb / 0.08 lb), Pearloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) including banjo bolt |
| Button Borehole | 0.17 in diameter with 0.14 in drive flat |
| Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
