Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 Guitar Tuning Machine sets a high standard for closed tuning machines with its refined 1:18 gear ratio, delivering unmatched tuning precision and smooth, velvet-like operation. Every component is CNC-machined to precise tolerances and finished for reliable, consistent performance, supported by a self-locking drive mechanism.
Crafted with premium high-grade brass string posts engineered seamlessly into the housing, these tuners provide exceptional tuning stability and wear resistance. The specialized stepped M6 collar washer ensures straightforward installation and precise shaft centering without requiring a stepped peghead bore, eliminating tilting torque and reducing stress on mounting hardware.
Featuring permanent internal lubrication with Schaller special grease, each closed tuning machine provides maintenance-free reliability throughout its service life. The M6 135 features identical installation dimensions to its predecessor, allowing direct replacement on existing instruments without modification.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Single Tuner Weight with Button (Small/Large) | Metal (1.3 oz / 1.3 oz), Perloid (1.1 oz / 1.1 oz), Ebony (1.1 oz / 1.1 oz) including hollow screw |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Mounting Screws Included | 6x M2.2 x 9.5 mm (0.37 in) |
| Lubrication | Permanently lubricated with Schaller special grease |
| Product Weight | 0.79 lb |




















