Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 sets a high standard for closed tuning machines, featuring an improved 1:18 gear ratio for velvety-smooth, precise tuning action. Every component is CNC-machined to exact tolerances, delivering a self-locking drive mechanism that guarantees consistent tuning feel and exceptional pitch stability.
Equipped with high-grade brass string posts engineered for wear-free operation, these tuners incorporate Schaller's stepped collar washer with a 0.39 in (10 mm) base diameter. This design centers the string post securely through the banjo bolt without requiring a stepped peghead bore, eliminating tilting forces and reducing strain on both the shaft and rear mounting screw.
These closed tuning machines are permanently lubricated with Schaller special grease, making them completely maintenance-free over their operational lifespan. Designed for straightforward direct replacement on standard headstocks, they offer superior stability and fine-tuning control.
| Brand | Schaller |
| Model | M6 180 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Collar Washer Diameter | 0.39 in (10 mm) |
| Button Bore Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Individual Weight (Metal Small/Large) | 1.27 oz / 1.34 oz (36 g / 38 g) |
| Individual Weight (Perloid Small/Large) | 1.06 oz / 1.09 oz (30 g / 31 g) |
| Individual Weight (Ebony Small/Large) | 1.06 oz / 1.09 oz (30 g / 31 g) |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Product Weight | 0.79 lb |
