Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers refined performance and tuning stability, continuing the heritage of closed tuning systems. Equipped with an improved 1:18 gear ratio, it ensures precise, velvet-smooth action and fine adjustments. Every component is CNC-machined to tight tolerances, ensuring frictionless response and reliable long-term durability.
Crafted with premium brass string posts and permanently lubricated with proprietary Schaller grease, these tuners operate completely maintenance-free. The innovative stepped M6 flanged washer ensures optimal self-centering through the headstock bore, effectively eliminating tilting friction and reducing stress on the mounting screws.
Designed with standard mounting dimensions identical to its predecessor, the M6 90 allows for direct drop-in replacement on existing instruments without modification. It delivers dependable pitch retention and rock-solid mechanical integrity across demanding playing conditions.
| Brand | Schaller |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | High-Grade Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight per Single Tuner with Button | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw |
| Lubrication | Permanently lubricated with Schaller special grease |
| Compatibility | Solid and slotted headstock guitars |
