Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers outstanding precision and tuning comfort with an upgraded 1:18 gear ratio. Designed to build upon the legendary 1966 original, this modern version features CNC-machined components and a self-locking drive for smooth, consistent, and highly stable performance.
Crafted with premium brass string posts precision-fitted into the housing, the M6 135 ensures maximum tuning stability and wear-free operation. All enclosed mechanisms are permanently lubricated with Schaller special grease, making them completely maintenance-free over their entire lifespan.
The innovative stepped M6 flanged washer reliably centers the string post via the banjo bolt, eliminating tilt torque and protecting mounting hardware without requiring stepped headstock holes. Sharing identical installation dimensions with its predecessor, it serves as a seamless direct replacement.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Button Borehole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight per Single Tuner with Button (Small/Large) | Metal: 1.27 oz / 1.34 oz (36 g / 38 g); Perloid: 1.06 oz / 1.09 oz (30 g / 31 g); Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) |
| Item Weight | 0.13 lb |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
