Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers outstanding precision and tuning comfort with its refined 1:18 gear ratio. CNC-machined components and premium brass posts ensure velvety smooth operation, reliable self-locking performance, and long-term wear resistance.
Featuring the innovative stepped M6 flanged washer, this tuner reliably centers the string post via the threaded bushing without requiring stepped headstock drilling. This design eliminates tilting torque and reduces mechanical stress on both the post and the rear mounting screw.
Permanently lubricated with Schaller special grease for entirely maintenance-free service, the M6 90 shares identical installation dimensions with its predecessor model for direct, hassle-free replacement on your instrument.
| Gear Ratio | 1:18 |
| 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 threaded bushing |
| Button Bore Hole | Diameter 0.17 in with driving surface 0.14 in |
| Product Weight | 0.79 lb |
| Post Material | High-Grade Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Series | M6 Series |
| SKU | 1005 |
