Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine offers precision engineering and smooth tuning stability. Featuring an improved 1:18 gear ratio, it ensures precise, velvety-smooth tuning adjustments. All components are CNC-machined and surface-treated to guarantee smooth, delicate, and reliable tuning performance through its self-locking mechanism.
Crafted with premium brass string posts precisely fitted into the housing, this machine head provides maximum tuning stability and wear resistance. The innovative stepped M6 flanged washer ensures easy installation and permanent, solid centering of the post without requiring stepped drilling in the headstock, effectively eliminating tilt torque and taking pressure off both the post and rear mounting screw.
All enclosed tuning machines are permanently lubricated with Schaller special grease for completely maintenance-free operation. Featuring identical installation dimensions to its predecessor model, it allows for direct replacement without any headstock modifications.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Weight | 0.13 lb |
| 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 |
| Lubrication | Schaller special grease (maintenance-free) |


















