Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine represents high precision and refined engineering. Featuring an improved 1:18 gear ratio, it ensures precise, velvet-smooth tuning and exceptional pitch stability. High-precision CNC-machined components and surface finishing deliver velvet-touch operation alongside a self-locking drive mechanism.
Equipped with premium brass string posts carefully fitted to the housing, this tuning machine provides maximum wear resistance. The innovative stepped M6 flanged washer centers the string post securely through the banjonut, eliminating tilting moments, reducing mounting pressure, and removing the need for a stepped peghead bore.
All enclosed housings are permanently lubricated with Schaller special grease for completely maintenance-free performance. Designed to match the exact mounting dimensions of previous generations, it allows for seamless installation and replacement without modifying the headstock.
| Brand | Schaller |
| Model | M6 90 |
| SKU | 10050170.06.35 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Weight per Single Tuner 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 banjonut |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Product Weight | 0.79 lb |


















