Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets an industry benchmark for enclosed tuners, featuring an upgraded 1:18 gear ratio that provides ultra-precise, velvety-smooth tuning feel and exceptional pitch stability. Every component is CNC-machined to exact tolerances and surface-finished for a self-locking drive that prevents slippage and backlash.
Engineered with premium brass string posts precision-fitted into the housing, these tuners deliver maximum wear resistance and sustained tuning reliability over years of playing. The innovative stepped M6 flanged washer centers the string post securely through the threaded bushing without requiring stepped peghead drilling, eliminating tilt torque and relieving stress on mounting screws.
Designed with identical mounting dimensions to its legacy predecessor, the M6 135 serves as a direct drop-in replacement without instrument modification. All enclosed housings come permanently lubricated with Schaller special grease for completely maintenance-free operation.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| 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 threaded bushing |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Total Weight | 0.79 lb |
| Lubrication | Permanently lubricated with Schaller special grease |
