Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine features a precise 1:18 gear ratio that ensures ultra-smooth operation and superior tuning stability. Designed with high-precision CNC-machined components and surface finishes, each tuner provides velvet-smooth and dependable performance through a self-locking drive mechanism.
Equipped with premium brass string posts carefully fitted into the housing, these tuners deliver long-lasting resistance to wear and maximum tuning reliability. An innovative stepped M6 flanged washer centers the string post securely through the banjo bolt, eliminating tipping torque and preventing stress on both the post and rear mounting screws.
Permanently lubricated with Schaller special grease for completely maintenance-free operation, the M6 90 maintains the identical mounting dimensions of previous models for seamless drop-in replacement without instrument modifications.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| 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 Borehole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Mounting Type | 90 Degree |
