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 to exact tolerances, surface-finished, and permanently lubricated with specialized Schaller grease for smooth, maintenance-free performance.
Equipped with high-grade brass string posts and a self-locking drive mechanism, this enclosed tuner ensures exceptional tuning stability and wear-free operation. The stepped M6 flanged washer reliably centers the post without requiring a stepped headstock hole, eliminating tilting moments and relieving stress on the mounting components.
Featuring the identical installation dimensions of its predecessor, the M6 90 allows for seamless direct replacement on guitar headstocks. It comes complete with threaded bushings, stepped flanged washers, and mounting screws for secure and stable installation.
| 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) |
| Product Weight | 0.79 lb (0.36 kg) |
| Lubrication | Permanently lubricated with Schaller special grease |
