Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers outstanding precision and tuning comfort with its improved 1:18 gear ratio. All components are high-precision CNC-machined and surface-finished, featuring a self-locking drive mechanism that guarantees smooth, sensitive, and stable tuning.
Equipped with high-grade brass string posts precisely fitted into the housing, this tuning machine provides maximum tuning stability and wear resistance. The innovative stepped M6 flanged washer ensures straightforward installation, reliably centers the string post without requiring stepped headstock drilling, and prevents tilting stress on the mounting screws.
Permanently lubricated with Schaller special grease for completely maintenance-free operation, the M6 90 retains identical mounting dimensions to its predecessor for effortless drop-in replacement on compatible electric and acoustic guitar headstocks.
| Brand | Schaller |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Button Bore Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight per Single Tuner 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) |
| Product Weight | 0.79 lb |
| Lubrication | Schaller Special Lifetime Grease |
