Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers state-of-the-art precision and tuning stability with an improved 1:18 gear ratio. Designed to set the benchmark for enclosed tuning machines, every component is CNC-machined and surface-finished to ensure velvet-smooth operation and reliable, self-locking performance.
Equipped with high-grade brass string posts engineered precisely into the housing, the M6 90 offers wear-free operation and exceptional durability. The innovative stepped M6 flanged washer centers the string post securely across the hollow screw, removing tilt torque and eliminating the need for a stepped peghead hole.
Retaining identical installation dimensions to its predecessor, this machine provides an effortless drop-in replacement without requiring guitar modifications. All enclosed units are permanently lubricated with Schaller special grease for maintenance-free longevity.
| Brand | Schaller |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight | 0.79 lb |
| Single Tuner Weight with Button (Small / Large) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw |
| Button Bore Hole | 0.17 in diameter with 0.14 in driving surface |
| Post Material | Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
