Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 tuning machine features an advanced 1:18 gear ratio that delivers exceptional precision, ultra-smooth operation, and outstanding tuning stability. Engineered with high-precision CNC-machined components and surface treatments, these enclosed tuners utilize a self-locking drive mechanism to guarantee uniform and sensitive adjustments.
Crafted with premium brass posts precisely fitted into the housing, the M6 90 ensures maximum wear resistance and dependable performance. The innovative stepped M6 flanged washer centers the string post securely via the banjo bolt, eliminating tilting friction and removing the need for stepped peghead drill holes while safeguarding the headstock.
Featuring identical installation dimensions to its predecessor, the M6 90 enables seamless drop-in replacement without requiring guitar modifications. All enclosed assemblies are permanently lubricated with Schaller specialized grease for completely maintenance-free operation over extended use.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 90 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | High-Grade Brass |
| Manufacturing | Precision CNC-Machined |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| 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 |
| Mounting Screws Included | M2.2 x 9.5 mm |
| Flanged Washer Diameter | 0.39 in (10 mm) |
| Product Weight | 0.79 lb |
