Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine offers precision engineering and tuning comfort with an improved 1:18 gear ratio. All components are CNC-machined and surface-finished, featuring high-grade brass posts fitted into the housing for maximum tuning stability and wear resistance.
Equipped with the innovative stepped M6 flanged washer, this tuning machine simplifies installation and reliably centers the string post without requiring a stepped headstock bore. The design eliminates tilting moment while relieving mechanical pressure from both the post and mounting screw.
Featuring permanently lubricated internal gears with Schaller special grease, the M6 135 delivers maintenance-free performance. Its mounting dimensions match previous M6 models for direct, hassle-free replacement on compatible guitar headstocks.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| SKU | 10020123.05.35 |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Weight per Single Tuner with Button (Small / Large) | Metal: 1.27 oz / 1.34 oz (36 g / 38 g), Pearloid: 1.06 oz / 1.09 oz (30 g / 31 g), Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) including threaded bushing |
| Button Borehole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Product Weight | 0.79 lb |



















