Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine represents high-precision instrument engineering, featuring a refined 1:18 gear ratio that delivers smooth, velvety tuning and exceptional pitch stability. High-precision CNC-machined components with premium surface finishes work alongside a self-locking drive mechanism to ensure sensitive and reliable performance.
Crafted with premium brass string posts precisely fitted into the housing, the M6 90 minimizes mechanical wear while maximizing tuning retention. The innovative stepped M6 flanged washer centers the string post securely via the hollow screw, preventing tilt torque and eliminating the need for a stepped peghead bore.
Permanently lubricated with Schaller special grease for maintenance-free operation, this sealed tuner matches the exact installation dimensions of its predecessor for effortless drop-in replacement on compatible headstocks.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| SKU | 10050570.04.35 |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| 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 hollow screw |
| Product Weight | 0.79 lb |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
