Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 guitar tuning machine delivers outstanding precision and smooth tuning comfort with an advanced 1:18 gear ratio. Continuing the legacy of the original sealed tuner standard set in 1966, this model incorporates refined mechanical improvements while preserving its classic performance.
Precision CNC-machined internal components paired with a self-locking drive mechanism ensure uniform, highly sensitive adjustment and rock-solid tuning stability. High-grade brass string posts are fitted to tight tolerances inside the housing, and factory lubrication with Schaller special grease ensures completely maintenance-free operation.
The innovative stepped M6 flanged washer centers the string post reliably via the banjo bolt, eliminating the need for a stepped headstock bore. This design effectively absorbs lateral pressure and eliminates tilting torque on both the post and the rear mounting screw.
| Brand | Schaller |
| Model | M6 180 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight per Single Tuner with Button (Small / Large) | 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 driving surface 0.14 in (3.6 mm) |
| String Post Material | Brass |
| Lubrication | Schaller special grease (permanently lubricated, maintenance-free) |
| Product Weight | 0.79 lb |



















