Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine offers precision engineering with an advanced 1:18 gear ratio for smooth, accurate, and stable tuning. Built with high-precision CNC-machined components and surface finishes, it features a self-locking drive mechanism that ensures velvet-smooth operation.
Crafted with premium brass string posts precisely fitted into the housing, this machine head guarantees maximum tuning stability and wear resistance. The innovative stepped M6 flanged washer centers the string post reliably through the banjonut, eliminating tilting torque and protecting both the post and mounting screws without requiring stepped peghead counterbores.
Permanently lubricated with Schaller special grease for completely maintenance-free performance, the M6 135 shares identical installation dimensions with its predecessor model for seamless drop-in replacement on compatible headstocks.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Weight | 0.79 lb |
| 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 banjonut |
| Button Bore Hole | Diameter 0.17 in with 0.14 in drive flat |
| String Post Material | Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Included Banjonuts | 6 |
| Included Flanged Washers | 6 |
| Included Mounting Screws | 6 x M2.2 x 9.5 |


















