Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers outstanding precision and smooth tuning comfort with an upgraded 1:18 gear ratio. CNC-machined components and high-grade brass string posts ensure long-lasting tuning stability and wear-free performance.
Featuring the innovative stepped M6 flanged washer, this design perfectly centers the string post through the banjo bolt without requiring a stepped peghead bore. This advanced configuration eliminates tilting torque and reduces physical stress on both the post and rear mounting screws.
Equipped with permanent internal lubrication via specialized Schaller grease, these sealed tuners operate completely maintenance-free. Identical installation dimensions to previous iterations guarantee seamless direct replacement and retrofitting on your instrument.
| 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 Borehole | Diameter 0.17 in with driving surface 0.14 in |
| Product Weight | 0.8 lb |
| Brand | Schaller |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Post Material | Brass |
| Lubrication | Maintenance-free grease |
