Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers outstanding precision and smooth tuning comfort with an improved 1:18 gear ratio. All components are high-precision CNC-machined, surface-finished, and designed with a self-locking drive mechanism to ensure uniform, delicate, and stable tuning performance.
Constructed with premium brass string posts precision-fitted into the housing, this closed tuning machine guarantees maximum tuning stability and wear-free operation. Permanent internal lubrication with Schaller special grease ensures completely maintenance-free functionality across years of regular playing.
Featuring an innovative stepped M6 flanged collar, this tuner allows hassle-free installation and permanent center alignment of the post without requiring stepped peghead drilling. It matches the exact installation dimensions of its predecessor for seamless, direct replacement on compatible instruments.
| Gear Ratio | 1:18 |
| Weight per Single Tuner with Button | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw |
| Button Borehole | Diameter 0.17 in (4.2 mm) with driving flat 0.14 in (3.6 mm) |
| Brand | Schaller |
| Series | M6 Series |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Post Material | Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Product Weight | 0.13 lb |
