Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers outstanding precision and tuning comfort with its refined 1:18 gear ratio. All components are CNC-machined and surface-treated to guarantee smooth, sensitive, and stable tuning via a self-locking drive mechanism.
Crafted with premium brass string posts precision-fitted into the housing, these tuners provide optimal tuning stability and wear-free operation. The enclosed housing comes permanently lubricated with Schaller special grease for completely maintenance-free performance.
Featuring the innovative stepped M6 flange washer, this design eliminates tilting torque and centers the string post securely without requiring stepped peghead drilling. It matches the exact installation dimensions of preceding models for seamless drop-in replacement.
| Brand | Schaller |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
| Mounting Type | 90 degree |
| Total Weight | 0.8 lb |
| Button Bore Hole | 0.17 in diameter with 0.14 in drive flat |




















