Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 guitar tuning machine delivers outstanding precision and smooth tuning comfort thanks to its refined 1:18 gear ratio. Continuing the legacy of the original 1966 closed-gear design, this modernized standard features precision CNC-machined components with a self-locking drive mechanism for stable, sensitive adjustment.
Crafted with premium brass string posts precisely fitted into the housing, the M6 180 guarantees maximum tuning stability, wear resistance, and long-lasting performance. The innovative stepped M6 flanged washer centers the string post securely through the hollow screw, eliminating tilting torque and eliminating the need for a stepped peghead bore.
Permanently lubricated with Schaller special grease for completely maintenance-free operation, these tuners seamlessly fit modern headstocks while offering direct replacement compatibility. Each unit provides exceptional structural integrity and reliable intonation retention under demanding playing conditions.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Weight | 0.79 lb |
| 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 screw |
| Button Bore Hole | Diameter 0.17 in with 0.14 in driving flat |
| String Post Material | Brass |
| Lubrication | Permanent special grease lubrication (maintenance-free) |



















