Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets an industry benchmark for precision, tuning stability, and refined performance. Engineered with an upgraded 1:18 gear ratio, it ensures smooth, highly accurate tuning response. All components are precision CNC-machined, surface-finished, and driven by a self-locking mechanism for consistent, friction-free operation.
Crafted with premium brass posts fitted precisely into the housing, these tuners deliver long-lasting, wear-free performance. The innovative stepped M6 flanged washer reliably centers the string post without requiring stepped headstock holes, eliminating tilt torque and protecting mounting hardware. Every enclosed unit is lubricated for life with specialized grease, requiring zero maintenance.
Featuring the exact installation dimensions of its classic predecessor, the M6 135 allows direct drop-in replacement on existing headstocks without modifications. Each set includes matching banjo bolts, stepped flanged washers, and mounting screws for complete, hassle-free installation.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Weight | 0.8 lb |
| Single Tuner Weight | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Mounting Screw Size | M2.2 x 9.5 mm |
| Lubrication | Maintenance-free grease permanently lubricated |
