Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets an industry benchmark for closed tuners, featuring an upgraded 1:18 gear ratio for smooth, velvety, and exceptionally precise tuning control. Every component is CNC-machined to precise tolerances and finished for long-lasting durability, paired with a self-locking drive that ensures rock-solid tuning stability.
Crafted with premium brass posts accurately fitted into the housing, this tuning machine delivers wear-free performance. The innovative stepped M6 flanged washer centers the string post securely through the banjo bolt without requiring a stepped headstock bore, effectively eliminating tilting torque and reducing mechanical stress on both the post and rear mounting screw.
Engineered for effortless installation, the M6 135 shares identical installation dimensions with previous models for direct drop-in replacement without instrument modification. Each unit is permanently lubricated with Schaller special grease, providing completely maintenance-free operation for discerning musicians.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Single Tuner Weight 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 |
| Product Weight | 0.13 lb |




















