Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers outstanding precision and tuning comfort with an upgraded 1:18 gear ratio. All components are CNC-machined to exact tolerances, surface-finished, and equipped with a self-locking drive mechanism for smooth, velvety, and stable tuning performance.
Built with premium brass string posts precision-fitted into the housing, this tuning machine provides maximum tuning stability and wear-free operation. The enclosed housing features lifetime lubrication with specialized grease, ensuring completely maintenance-free functionality.
Featuring the innovative stepped M6 flanged washer, it centers the string post securely without requiring stepped peghead drilling. This design eliminates tilt torque, protects both the post and mounting screw, and matches the installation dimensions of its predecessor for seamless drop-in replacement.
| Brand | Schaller |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Lubrication | Permanent grease lubrication (maintenance-free) |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight | 0.79 lb |
