Schaller M6 135 Tuning Machine
The Schaller M6 135 sets the standard for closed tuning machines, featuring a precise 1:18 gear ratio for smooth, accurate tuning. High-precision CNC machining and self-locking drive ensure lasting stability and sensitive adjustment.
Solid brass posts fitted into the housing provide wear-free performance, complemented by permanent internal lubrication using Schaller special grease for completely maintenance-free operation.
Equipped with the stepped M6 collar washer with a 0.39 in (10 mm) diameter base, this mechanism reliably centers the string post via the banjo bolt, eliminating tilt torque and simplifying installation across direct replacement applications.
| Gear Ratio | 1:18 |
| Weight per Single Tuner (Small / Large Button) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including banjo bolt |
| Button Borehole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Product Weight | 0.79 lb |
| Brand | Schaller |
| Series | M6 Series |
| Material | Brass Posts, Metal Housing |
| Lubrication | Maintenance-free Schaller Special Grease |




















