Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets the benchmark for closed tuning machines with its high-precision 1:18 gear ratio, delivering ultra-smooth, fine-tuned, and stable tuning performance. Engineered from CNC-machined components and surface-treated for maximum durability, it guarantees friction-free operation and exceptional longevity.
Featuring high-grade brass string posts precisely seated within the housing, these tuners ensure superior tuning stability. The innovative stepped M6 washer centers the string post securely through the threaded bushing, eliminating tilting torque and protecting the headstock without requiring stepped boreholes.
Permanently lubricated with Schaller special grease for completely maintenance-free performance, the M6 90 retains identical mounting dimensions to its classic predecessor, allowing for seamless replacement and upgrades without headstock modifications.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 90 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Single Tuner Weight with Button (Small/Large) | Metal: 1.27 oz / 1.34 oz (36 g / 38 g); Perloid: 1.06 oz / 1.09 oz (30 g / 31 g); Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) including threaded bushing |
| Product Weight | 0.79 lb |
| Lubrication | Schaller special grease (maintenance-free) |
