Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine offers precision and tuning comfort with an upgraded 1:18 gear ratio. Designed with CNC-machined components and premium brass string posts, it ensures smooth, self-locking performance and reliable tuning stability.
Featuring the innovative stepped M6 flanged washer with a 0.39 in diameter, this tuner reliably centers the string post via the banjo bolt. This engineering design eliminates tilting torque and reduces strain on both the post and rear mounting screws without requiring stepped headstock drilling.
Maintaining the identical mounting dimensions of its classic predecessor, the M6 135 allows direct replacement and upgrades. Sealed and permanently lubricated with Schaller special grease, each unit delivers maintenance-free, wear-resistant operation.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Button Hole Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Washer Base Diameter | 0.39 in (10 mm) |
| Mounting Screw Size | M2.2 x 9.5 mm (M2.2 x 0.37 in) |
| Lubrication | Permanently lubricated with Schaller special grease |
| Weight | 0.79 lb (0.36 kg) |
