Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 tuning machine series sets a high standard for enclosed guitar tuners with an advanced 1:18 gear ratio that provides precise and velvety-smooth tuning comfort. Precision CNC-machined components and premium surface finishes ensure consistent performance and fine-touch stability through a self-locking drive system.
Crafted with high-grade brass posts fitted seamlessly into the housing, the M6 90 delivers exceptional tuning stability and maximum wear resistance. All enclosed machine heads are permanently lubricated with Schaller special grease, rendering them completely maintenance-free throughout their lifespan.
Installation is straightforward thanks to identical mounting dimensions to its predecessor and the innovative stepped M6 flanged washer. This collar design reliably centers the string post via the banjo bolt without requiring stepped peghead drilling, eliminating tilting moments and relieving mechanical strain.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 90 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Single Tuner Weight 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 hollow screw |
| Product Weight | 0.79 lb |
