Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 represents a legendary standard in sealed tuning machines, delivering unmatched precision and tuning comfort with an upgraded 1:18 gear ratio. All components are high-precision CNC-machined and surface-treated to guarantee smooth, sensitive, and stable operation through a self-locking drive mechanism.
Crafted with premium brass string posts precision-fitted into the housing, these tuners provide maximum tuning stability and wear resistance. Each closed machine head is permanently lubricated with Schaller special grease for completely maintenance-free performance.
Featuring the innovative stepped M6 flanged washer with a 0.39-inch diameter base, the string post is securely centered via the banjo bolt without requiring a stepped peghead bore. This design eliminates tilting torque and relieves mechanical stress from both the post and the rear mounting screw while matching the original installation dimensions for seamless replacement.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Mounting Screw Dimensions | M2.2 x 9.5 mm (0.37 in) |
| Weight | 0.79 lb |
| Single Unit Weight 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) including hollow screw |
| Lubrication | Schaller Special Grease (Permanent) |
