Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets a benchmark in guitar tuning technology, featuring a precision 1:18 gear ratio for smooth, accurate, and stable tuning comfort. Each component is CNC-machined to exact tolerances and surface-finished, utilizing a self-locking drive mechanism that guarantees lasting performance and precise adjustment.
Crafted with premium brass string posts fitted directly into the housing, these tuners ensure maximum tuning stability and wear-free operation. The enclosed housing comes permanently lubricated with proprietary Schaller grease, making the entire assembly completely maintenance-free across its extended lifespan.
Featuring the innovative stepped M6 flanged washer, this tuner allows straightforward installation and reliable centering of the string post via the banjo bolt without requiring stepped headstock drilling. This design absorbs operational pressure, eliminates tilting torque, and shares identical mounting dimensions with its predecessor for seamless replacement.
| Brand | Schaller |
| Model | M6 90 |
| Model Number | 1005 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Lubrication | Permanently lubricated with Schaller special grease |
| Manufacturing Process | CNC-machined |
| Product Weight | 0.79 lb |
