Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 Guitar Tuning Machine sets an industry standard for closed tuning systems, offering an upgraded 1:18 gear ratio for ultra-precise, velvet-smooth tuning comfort. CNC-machined components with high-grade brass string posts and a self-locking drive ensure maximum tuning stability and wear-free performance.
Featuring the innovative stepped flanged washer, this machine head guarantees effortless installation and precise axle centering without requiring stepped bore holes in the headstock. This design eliminates tilting torque and reduces mechanical stress on the string post and rear fixing screw.
Built with identical mounting dimensions to its classic predecessor, the M6 90 allows for seamless direct replacement on existing instruments. Each unit is permanently lubricated with Schaller special grease for entirely maintenance-free operation.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Model | M6 90 |
| Gear Ratio | 1:18 |
| Product Weight | 0.79 lb |
| Single Tuner Weight 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) |
| Button Bore Hole | 0.17 in diameter with 0.14 in drive flat |
| Post Material | Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
