Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets a high standard for closed tuning machines, featuring an advanced 1:18 gear ratio that delivers exceptional precision, smooth operation, and tuning comfort. CNC-machined components with self-locking drive mechanics ensure precise, sensitive, and stable string tuning for electric and acoustic guitars.
Crafted with premium brass string posts fitted directly into the housing, these tuners offer superior wear resistance and long-lasting stability. Each unit is permanently lubricated with Schaller special grease for completely maintenance-free performance throughout its lifespan.
Featuring the innovative stepped M6 flanged washer, installation is streamlined while eliminating tilting torque and protecting both the post and rear mounting screws. The M6 90 matches legacy footprint dimensions for direct drop-in replacement without instrument modification.
| Gear Ratio | 1:18 |
| Product Weight | 0.79 lb |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Single Tuner Weight 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) including banjonut |
| Brand | Schaller |
| Series | M6 Series |
| Post Material | High-Grade Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
