Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 Guitar Tuning Machine represents the evolution of a legendary closed-gear design that set the global benchmark in 1966. Featuring a refined 1:18 gear ratio, it delivers velvety-smooth, precise tuning action alongside rock-solid pitch stability. Every component is CNC-machined to exact tolerances and engineered for exceptional longevity.
Equipped with high-grade brass string posts fitted directly into the housing, this machine head prevents wear and maintains structural rigidity during demanding play. The innovative stepped M6 flanged washer centers the post reliably via the hollow screw, removing lateral tilting torque and eliminating the requirement for stepped peghead boreholes.
Permanently lubricated with Schaller special grease, the enclosed mechanism remains completely maintenance-free over its operating life. Designed to retrofit original M6 footprints seamlessly, this tuner combines vintage prestige with modern precision engineering for acoustic and electric guitars.
| Brand | Schaller |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Weight per Single Tuner (Small / Large Button) | Metal (1.3 oz / 1.3 oz), Pearloid (1.1 oz / 1.1 oz), Ebony (1.1 oz / 1.1 oz) including banjo bolt |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) driving flat |
| Product Weight | 0.13 lb |
| Housing Type | Enclosed |
| Post Material | Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
