Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets a benchmark for sealed guitar tuning machines, featuring a precise 1:18 gear ratio for smooth, accurate, and stable tuning performance. Built with premium CNC-machined components and surface finishes, it delivers a self-locking drive mechanism that ensures reliable tension control.
Engineered for enduring quality, every string post is crafted from high-grade brass and fitted precisely into the housing to maximize tuning stability and eliminate wear. All enclosed machine heads are permanently lubricated with specialized Schaller grease for completely maintenance-free operation.
Featuring the innovative stepped flanged washer, this tuning machine reliably centers the string post without requiring a stepped peghead bore, eliminating tilting torque and protecting mounting hardware. Designed to match standard M6 mounting dimensions, it allows for seamless installation and replacement.
| Brand | Schaller |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) 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: 1.06 oz / 1.09 oz (30 g / 31 g); Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) |
| Weight | 0.79 lb |
