Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers exceptional tuning precision and stability with an advanced 1:18 gear ratio. Engineered with high-precision CNC-machined components and a self-locking drive mechanism, it ensures velvet-smooth operation and reliable performance.
Featuring solid brass string posts precisely fitted into the housing, this enclosed tuner provides maximum wear resistance. The innovative stepped M6 flanged washer centers the string post securely through the banjo bolt, eliminating tilting moment and removing pressure from both the post and rear mounting screw without requiring stepped headstock drilling.
Each closed machine head is permanently lubricated with Schaller special grease for completely maintenance-free operation. Built to match the exact mounting dimensions of its predecessor, it offers seamless replacement and upgrades for guitar headstocks.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Lubrication | Schaller Special Grease (Permanently Lubricated) |
| 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 |
| Button Hole Dimensions | Diameter 0.17 in (4.2 mm) with driving flat 0.14 in (3.6 mm) |
| Stepped Flanged Washer Base Diameter | 0.39 in (10 mm) |
| Mounting Screws | M2.2 x 9.5 mm |
| Included Hardware | 6 hollow screws, 6 flanged washers, 6 mounting screws |
| Product Weight | 0.79 lb |
