Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 guitar tuning machine represents an advanced evolution of a legendary closed-gear design, offering unmatched precision and exceptional tuning comfort. Featuring a refined 1:18 gear ratio, this machine head provides ultra-smooth, fine-tuned response and rock-solid tuning stability for electric and acoustic guitars.
Crafted with high-precision CNC manufacturing, each component is engineered for durability and self-locking stability. The internal brass posts are meticulously fitted into the housing, ensuring minimal wear over time and maintaining smooth operation throughout intensive use.
Equipped with an innovative stepped M6 flanged collar with a 0.39 in (10 mm) base diameter, this design centers the string post securely through the screw bushing without requiring step-drilled headstocks. All internal gears are permanently lubricated with Schaller special grease for completely maintenance-free performance.
| Brand | Schaller |
| Model | M6 180 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight | 0.13 lb |
| Single Tuner Weight with Button (Small / Large) | Metal (1.27 oz / 1.34 oz), Pearloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including screw bushing |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| String Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |





















