Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets a benchmark in guitar tuning technology, featuring a precise 1:18 gear ratio for smooth and exceptionally accurate tuning control. Built with high-precision CNC-machined components, it delivers self-locking drive performance and exceptional long-term pitch stability.
High-grade brass posts are precisely fitted into the housing to eliminate wear, while the innovative stepped flanged washer ensures effortless mounting and centered post alignment without requiring stepped headstock drilling. Permanently lubricated with specialized grease, each sealed unit remains completely maintenance-free.
Featuring the exact installation dimensions of its predecessor, the M6 90 offers seamless retrofitting without modifications to standard headstocks.
| Brand | Schaller |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Lubrication | Permanently lubricated |
| Button Bore Hole | Diameter 0.2 in with driving surface 0.1 in |
| Product Weight | 0.8 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 banjo bolt |
