Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine features a precise 1:18 gear ratio that ensures velvet-smooth and exact tuning stability. Built with high-precision CNC-machined components and premium surface finishing, it incorporates a self-locking drive mechanism for reliable performance.
Equipped with high-grade brass string posts engineered seamlessly into the housing, this tuning machine provides maximum wear resistance and tuning accuracy. The innovative stepped M6 collar washer centers the string post securely through the banjo bolt, eliminating tilting friction and protecting both the post and rear mounting screw.
Permanently lubricated with Schaller special grease for maintenance-free operation, the M6 90 matches the standard installation dimensions of previous models for hassle-free upgrades and drop-in replacements.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 90 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Weight per Single Tuner with Button (Small/Large) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including banjo bolt |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Lubrication | Permanent lubrication with Schaller special grease |
| Manufacturer | Schaller GmbH |
