Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 represents the evolution of the legendary original closed tuner, delivering unmatched precision and tuning ease. Featuring an upgraded 1:18 gear ratio, it ensures an ultra-smooth, fine-tuned, and highly responsive adjustment process for all playing demands.
Crafted with precision CNC machining, each component is engineered for lasting durability and reliable operation. High-grade brass string posts fit tightly within the housing to maximize tuning stability, while sealed housings lubricated with proprietary Schaller grease offer completely maintenance-free performance.
An innovative stepped M6 flanged collar simplifies headstock installation by securely centering the string post via the banjo bolt, eliminating the need for stepped headstock holes and minimizing lateral torque. The M6 180 directly replaces previous iterations without requiring headstock modifications.
| Brand | Schaller |
| Model | M6 180 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight per Single Tuner with Button (Small/Large) | Metal (1.3 oz / 1.3 oz), Perloid (1.1 oz / 1.1 oz), Ebony (1.1 oz / 1.1 oz) including hollow screw |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Post Material | High-Grade Brass |
| Lubrication | Schaller Special Grease (Sealed & Maintenance-Free) |
| Weight | 0.79 lb |





















