Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers precise and smooth tuning performance with its refined 1:18 gear ratio. All components are precision CNC-machined and surface-finished, featuring a self-locking drive that provides uniform, delicate, and stable tuning.
Crafted with premium brass string posts precision-fitted into the housing, this closed tuning machine guarantees maximum tuning stability and wear resistance. Each unit comes permanently lubricated with Schaller special grease for entirely maintenance-free operation over its lifespan.
An innovative stepped M6 flanged washer ensures straightforward installation and lasting center alignment of the post without requiring a stepped peghead bore. It maintains identical mounting dimensions to its predecessor, allowing direct replacement without headstock modifications.
| Brand | Schaller |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| 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 |
| Lubrication | Schaller Special Grease (Permanently Lubricated) |
| Weight per Single Unit with Button | Metal: 1.27 oz / 1.34 oz (36 g / 38 g); Perloid/Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) including banion bolt |
| Product Weight | 0.13 lb |
