Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers outstanding precision and smooth tuning comfort with an upgraded 1:18 gear ratio. Continuing the legacy of the original closed tuning machine introduced in 1966, this model incorporates refined mechanical innovations while preserving classic performance.
Every component is precision CNC-machined and surface-finished, featuring self-locking mechanics that ensure uniform, sensitive, and dependable tuning stability. The high-grade brass string posts fit tightly within the housing to maximize wear resistance and keep your instrument securely in pitch.
Featuring the innovative stepped M6 flanged washer, this machine reliably centers the string post through the threaded bushing without requiring stepped headstock drilling. It shares identical mounting dimensions with previous M6 models for direct, drop-in replacement without instrument modifications.
| Brand | Schaller |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| Weight per Single Unit with Button | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Post Material | Brass |
| Lubrication | Schaller special grease permanent lubrication |
| Mounting Type | 135-degree fixing tab |
