Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine represents high-precision engineering with an advanced 1:18 gear ratio for smooth, accurate, and stable tuning. CNC-machined components and surface-treated brass string posts guarantee wear-free performance, dependable tension control, and superior pitch stability.
Featuring the innovative stepped M6 flange washer, installation is streamlined without requiring stepped boreholes in the headstock. This design effectively eliminates tilting torque while dispersing pressure across the string post and rear mounting screws for enhanced longevity.
All enclosed housings are permanently lubricated with Schaller specialized grease for completely maintenance-free operation. Engineered to match the exact mounting dimensions of previous generations, it serves as a seamless upgrade or direct replacement for precision-demanding players.
| Brand | Schaller |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | High-Grade Brass |
| Button Borehole Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Weight | 0.79 lb |
| Single Tuner Weight (Small / Large Button) | Metal: 1.27 oz / 1.34 oz (36 g / 38 g); Perloid/Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) |
