Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers outstanding precision and smooth tuning performance with its refined 1:18 gear ratio. Designed with high-precision CNC-machined components and surface finishing, it ensures consistent, sensitive, and stable tuning via a self-locking drive mechanism.
Crafted with premium brass string posts precision-fitted into the housing, this tuning machine provides maximum tuning stability and wear resistance. The innovative stepped M6 flanged washer guarantees effortless installation and permanent shaft centering while eliminating tilting torque without requiring stepped headstock drilling.
Each closed machine head is permanently lubricated with Schaller special grease for completely maintenance-free operation. Featuring identical installation dimensions to its predecessor model, it enables direct and hassle-free replacement on compatible headstocks.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| Post Material | High-Grade Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
| Weight with Button per Unit (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 Bore Hole | Diameter 0.17 in (4.2 mm) with driving flat 0.14 in (3.6 mm) |
| Total Weight | 0.79 lb |


















