Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 guitar tuning machine represents the legendary benchmark in closed tuning keys, refined for maximum performance and stability. Featuring a precision 1:18 gear ratio, it provides exceptionally smooth, velvet-like tuning accuracy and superior pitch retention. High-grade brass posts are precisely fitted into the housing to eliminate wear and ensure optimal performance over long-term use.
Every internal and external component is CNC-machined to exact tolerances, delivering self-locking drive mechanics for reliable holding power. The innovative stepped M6 flanged washer centers the string post securely through the threaded bushing without requiring stepped headstock boreholes. This smart design distributes mechanical pressure evenly, preventing tilting torque on both the post and rear mounting screw.
Built with closed, permanently lubricated internal gears using proprietary Schaller grease, these tuners operate completely maintenance-free. Their direct-replacement footprint allows quick, drop-in installation on standard headstocks while significantly upgrading tuning precision and string resonance.
| Brand | Schaller |
| Model | M6 180 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | High-Grade Brass |
| Single Tuner Weight (Small / Large Button) | Metal (1.27 oz / 1.34 oz), Pearloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Product Weight | 0.79 lb |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
