Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets a benchmark for closed guitar tuning machines, featuring a precise 1:18 gear ratio that ensures ultra-smooth operation and superior tuning stability. Designed with CNC-machined components and self-locking drive mechanisms, it offers exceptionally reliable, velvet-soft adjustments.
Equipped with high-grade brass string posts and permanently lubricated with Schaller special grease, these tuners are completely maintenance-free. The precision fit within the housing ensures maximum wear resistance and long-term durability under heavy playing conditions.
Featuring the innovative stepped M6 flanged washer, installation is streamlined without requiring stepped headstock drilling. This design centers the string post securely, eliminating tilting torque and reducing mechanical stress on both the post and mounting screws.
| Gear Ratio | 1:18 |
| Weight | 0.79 lb |
| Weight per Single Tuner with Button (Small/Large) | Metal (0.08 lb / 0.08 lb), Perloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) including hollow screw |
| Button Bore Hole | Diameter 0.17 in with driving surface 0.14 in |
| Brand | Schaller |
| Series | M6 Series |
| Post Material | Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
