Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 guitar tuning machine sets an industry standard for enclosed tuners, featuring an upgraded 1:18 gear ratio that delivers exceptional tuning precision and ultra-smooth operation. Each component is precision CNC-machined and finished to provide a self-locking drive mechanism that guarantees delicate, consistent, and highly reliable tuning stability.
Crafted with premium brass string posts precisely fitted into the housing, this tuning machine ensures maximum wear resistance and pitch stability. The design integrates an innovative stepped M6 flanged washer with a 0.39-inch diameter base, which accurately centers the string post via the banjo bolt, eliminating tilting moment and relieving stress on both the post and rear mounting screw without requiring stepped headstock drilling.
All enclosed machine heads are permanently lubricated with Schaller special grease for completely maintenance-free performance. Engineered for straightforward installation, the M6 180 can directly replace previous models without headstock modifications, providing professional-grade hardware for demanding musicians.
| Brand | Schaller |
| Model | M6 180 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Weight per Single Tuner with Button (Small/Large) | Metal (0.08 lb / 0.08 lb), Perloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) including hollow bolt |
| Button Bore Hole | Diameter 0.17 in with driving surface 0.14 in |
| Lubrication | Permanently lubricated with Schaller special grease |
| Flanged Washer | Stepped M6 flanged washer (0.39 in diameter) |
| Weight | 0.79 lb |





















