Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers precise and smooth tuning performance with its refined 1:18 gear ratio. Designed to build upon the industry standard set by the original enclosed tuner in 1966, this modern iteration incorporates state-of-the-art CNC machining and surface finishing to ensure consistent stability and sensitivity.
Crafted with premium brass string posts fitted directly into the housing, these tuners provide exceptional wear resistance and long-lasting tuning stability. The enclosed housing comes permanently lubricated with Schaller special grease, rendering the entire mechanism completely maintenance-free.
An innovative stepped collar design centers the string post securely over the banjo bolt, eliminating tilt and removing excess pressure from both the post and the rear mounting screw. With identical installation dimensions to its predecessor, it serves as a seamless replacement upgrade without requiring headstock modifications.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Bore Hole | Diameter 4.2 mm with 3.6 mm driving surface |
| Lubrication | Permanently lubricated with Schaller special grease |
| Individual 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 banjo bolt |
| Product Weight | 0.79 lb |
