Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 series represents precision and tuning comfort with an upgraded 1:18 gear ratio. Continuing the legacy established in 1966, this closed tuning machine offers smooth and velvety operation alongside rock-solid tuning stability.
Every component is CNC-machined to precise tolerances, finished to high standards, and equipped with a self-locking drive for sensitive and uniform adjustment. The brass string posts are fitted with exacting precision to resist wear, while factory-sealed lubrication ensures fully maintenance-free performance.
Equipped with the innovative stepped M6 flanged collar, this machine centers the string post securely without requiring stepped peghead holes. It shares the identical installation dimensions of its predecessor for seamless retrofitting.
| Gear Ratio | 1:18 |
| Weight per Single Tuner with Button (Small/Large) | Metal (0.08 lb / 0.08 lb), Pearloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) including banjo bolt |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Product Weight | 0.79 lb |
| Brand | Schaller |
| Series | M6 Series |
| Post Material | Brass |
| Housing Design | Sealed / Closed |
| Lubrication | Special Grease Permanent Lubrication |
