Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers precise and smooth tuning performance with its refined 1:18 gear ratio. Engineered for high stability and longevity, all components are CNC-machined and finished with self-locking drive mechanisms to ensure reliable, velvet-smooth operation.
Crafted with premium brass string posts precision-fitted into the housing, these enclosed tuners provide maximum tuning stability and wear resistance. Each unit is permanently lubricated with Schaller special grease, making the entire mechanism completely maintenance-free.
Featuring the innovative stepped M6 flanged washer, installation is streamlined while eliminating tilting torque and reducing pressure on both the string post and rear fixing screw. The housing retains identical footprint dimensions to previous versions for seamless drop-in replacement without headstock modifications.
| Brand | Schaller |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Product Weight | 0.79 lb |
| Weight per Tuner with Button (Small/Large) | Metal (0.08 lb / 0.08 lb), Perloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) including banjo bolt |
