Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine features a precise 1:18 gear ratio, delivering velvet-smooth and exact tuning stability. Built upon the legendary enclosed tuner standard established in 1966, this updated model integrates modern innovations while preserving its renowned design. All components are CNC-machined and surface-treated for friction-free, self-locking operation.
Equipped with high-grade brass string posts engineered specifically for solid and slotted headstocks, the M6 90 guarantees long-term durability and tuning accuracy. The innovative stepped M6 flanged washer reliably centers the string post without requiring stepped headstock drilling, eliminating tilt torque and relieving stress on both the post and mounting screws.
Each enclosed tuner is permanently lubricated with Schaller special grease for completely maintenance-free performance. Designed to match the exact mounting dimensions of previous generation M6 tuners, it installs seamlessly onto compatible guitar headstocks.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Weight | 0.13 lb |
| Weight with Button per Single Tuner (Small/Large) | Metal (0.08 lb / 0.08 lb), Perloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) including banjo bolt |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Post Material | Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
