Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets a high standard for closed tuning machines, featuring a precise 1:18 gear ratio that ensures velvet-smooth, accurate, and stable tuning comfort. CNC-machined components and high-grade brass string posts provide exceptional durability, wear-free performance, and dependable tuning stability.
Equipped with Schaller's innovative stepped flanged washer, this tuning machine simplifies installation by reliably centering the string post without requiring stepped headstock boreholes. This design effectively eliminates tilting torque while relieving mechanical stress from both the post and rear mounting screws.
Each sealed tuner is permanently lubricated with Schaller special grease for completely maintenance-free operation. Built to standard dimensions, it seamlessly replaces predecessor models without headstock modifications.
| Brand | Schaller |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Product Weight | 0.8 lb |
| Post Material | Brass |
| Button Borehole | Diameter 4.2 mm with 3.6 mm driving surface |
| Lubrication | Permanently lubricated with Schaller special grease |
