Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets a benchmark for closed tuning machines, featuring an advanced 1:18 gear ratio for precise and smooth tuning performance. Engineered with CNC-machined components and premium surface finishes, it delivers consistent, self-locking stability and wear-free operation.
Equipped with high-grade brass string posts and permanently lubricated with Schaller special grease, these maintenance-free tuning machines guarantee optimal tuning stability. The innovative stepped M6 flanged washer centers the string post securely without requiring stepped peghead holes, eliminating tilting torque and reducing pressure on structural hardware.
Designed with identical installation dimensions to its predecessor, the M6 90 allows for direct replacement on guitars without headstock modifications. It is compatible with both standard solid or slotted headstocks as well as advanced Locking and TopLocking string post configurations.
| 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 0.2 in with drive flat 0.1 in |
| Product Weight | 0.8 lb |
| Brand | Schaller |
| Series | M6 Series |
| Material | Brass / Metal |
| Housing Type | Enclosed |
