Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets a benchmark for closed-back tuning systems with an advanced 1:18 gear ratio that provides velvety-smooth operation and precise intonation control. Every component is CNC-machined to exacting tolerances and features a self-locking drive mechanism that guarantees lasting tuning stability and backlash-free performance.
Crafted with premium high-grade brass string posts fitted seamlessly into the housing, this machine head prevents wear and ensures durable string retention. The innovative stepped M6 flanged collar reliably centers the string post without requiring a stepped peghead bore, eliminating tilting forces and protecting both the post and rear mounting screws.
Permanently lubricated with specialized Schaller grease for maintenance-free longevity, the M6 135 matches the footprint and installation dimensions of its predecessor for direct, modification-free retrofits on standard headstocks.
| 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 |
| Product Weight | 0.13 lb |
| Individual Weight with Metal Button | Small: 0.08 lb (36 g) / Large: 0.08 lb (38 g) |
| Individual Weight with Perloid/Ebony Button | Small: 0.07 lb (30 g) / Large: 0.07 lb (31 g) |
