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. Continuing the legacy of the original 1966 sealed tuner design, this model incorporates refined innovations while maintaining classic performance and style.
Precision CNC-machined internal components and a self-locking drive mechanism ensure uniform, backlash-free operation and exceptional tuning stability. High-grade brass string posts fit snugly into the housing to prevent wear and maintain solid alignment over time.
Equipped with Schaller's innovative stepped collar washer, the M6 90 centers string posts reliably to eliminate tilt moment and simplify installation. Sealed construction with permanent internal lubrication ensures maintenance-free longevity and drop-in compatibility with predecessor dimensions.
| Brand | Schaller |
| Series | M6 Series |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Button Bore Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) flat |
| Lubrication | Permanently lubricated with Schaller special grease |
| 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) including threaded bushing |
| Product Weight | 0.79 lb |
