Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers outstanding precision and tuning comfort with its improved 1:18 gear ratio. All components are high-precision CNC-machined and surface-finished, featuring a self-locking drive that ensures smooth, sensitive, and stable tuning performance.
Equipped with high-grade brass string posts engineered for maximum tuning stability, each unit is permanently lubricated with Schaller special grease for completely maintenance-free operation. The innovative stepped flanged washer reliably centers the string post without requiring a stepped peghead bore, eliminating tilting torque and reducing strain on mounting hardware.
Engineered to match the exact mounting dimensions of previous generation models, this closed-type tuning machine replaces older units without any headstock modifications. It provides exceptional durability and wear-free functionality for demanding musicians.
| Brand | Schaller |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Weight per Single Tuner with Button (Small / Large) | Metal: 1.27 oz / 1.34 oz (36 g / 38 g); Perloid / Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) |
| Item Weight | 0.79 lb |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
