Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine represents precision engineering and classic styling. Featuring an advanced 1:18 gear ratio, it provides unmatched tuning accuracy and smooth, velvety operation. Each component is CNC-machined to exacting tolerances and permanently lubricated with Schaller special grease for completely maintenance-free performance.
Equipped with high-grade brass string posts and a self-locking drive mechanism, the M6 90 delivers exceptional tuning stability and wear resistance. The innovative stepped M6 flanged washer reliably centers the string post via the hollow screw, eliminating tilting torque and removing stress from both the post and mounting screw without requiring stepped peghead drilling.
Designed with standard mounting dimensions identical to its predecessor, this tuner allows direct, modification-free replacement on compatible headstocks. It offers outstanding durability, premium surface finishing, and dependable mechanical response for demanding players and builders.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 90 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | High-Grade Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Lubrication | Permanently lubricated with Schaller special grease |
| Product Weight | 0.13 lb |
