Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 tuning machine delivers exceptional tuning precision and velvety-smooth operation with its improved 1:18 gear ratio. All components are CNC-machined to high tolerances and surface-finished, featuring a self-locking drive mechanism for stable, delicate tuning.
Equipped with high-grade brass posts fitted seamlessly into the housing, this closed tuner ensures superior tuning stability and wear resistance. Each unit is permanently lubricated with Schaller special grease, making it completely maintenance-free over its lifespan.
An innovative stepped M6 flanged washer centers the string post securely via the banjonut, eliminating tilting torque and protecting mounting hardware without requiring a stepped headstock bore.
| Brand | Schaller |
| Model | M6 180 |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Bore Hole | 0.17 in diameter with 0.14 in drive flat |
| Weight | 0.13 lb |
| Weight per Tuner (Small / Large Button) | Metal (0.08 lb / 0.08 lb), Perloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) |
| Lubrication | Schaller Special Grease (Maintenance-Free) |



















