Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine represents high-precision engineering with an optimized 1:18 gear ratio, delivering ultra-smooth and accurate tuning performance. Every component is meticulously CNC-machined and finished, utilizing a self-locking drive mechanism to guarantee exceptional tuning stability and sensitive adjustment.
Equipped with premium brass string posts and permanently lubricated with Schaller special grease, these enclosed machine heads offer complete maintenance-free reliability. The innovative stepped M6 flanged washer centers the string post securely, eliminating tilting torque and protecting the headstock without requiring stepped drill holes.
Designed with identical mounting dimensions to its classic predecessor, the M6 90 allows for direct drop-in replacement on standard headstocks without modification.
| Brand | Schaller |
| Series | M6 Series |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight per Single Tuner with Button (Small/Large) | Metal (1.3 oz / 1.3 oz), Perloid (1.1 oz / 1.1 oz), Ebony (1.1 oz / 1.1 oz) including hollow screw |
| Button Borehole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Product Weight | 0.79 lb |
| Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
