Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine features a precision 1:18 gear ratio engineered for velvety-smooth, highly accurate tuning comfort and exceptional stability. Built upon the legendary enclosed tuner design introduced in 1966, this modern version incorporates CNC-machined components with refined surface finishes and a self-locking drive mechanism.
Crafted with premium high-grade brass posts fitted seamlessly into the housing, the M6 135 provides maximum wear resistance and reliable pitch retention. The stepped M6 collar washer centers the string post securely through the banjo bolt, eliminating tilt torque and relieving pressure from both the post and rear mounting screws without requiring stepped headstock drilling.
Permanently lubricated with Schaller special grease for completely maintenance-free operation, the M6 135 shares identical mounting dimensions with its predecessor model for direct, modification-free retrofitting on compatible headstocks.
| Gear Ratio | 1:18 |
| Single Tuner Weight 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 |
| Button Borehole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Product Weight | 0.79 lb |
| Brand | Schaller |
| Model | M6 135 |
| Series | M6 Series |
| Post Material | Brass |
| Included Hardware | 6 banjo bolts, 6 stepped collar washers, 6 mounting screws (M2.2 x 9.5 mm / 0.37 in) |
