Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers outstanding precision and tuning comfort with an improved 1:18 gear ratio. All components are CNC-machined to exacting tolerances, surface-finished, and permanently lubricated with Schaller special grease for maintenance-free operation and long-lasting stability.
Featuring high-grade brass string posts precisely fitted into the housing, this closed tuner provides exceptional tuning stability and wear resistance. The innovative stepped M6 flanged washer centers the string post securely via the threaded bushing, eliminating tilting moment and relieving stress on mounting screws without requiring stepped headstock boreholes.
Built with the identical installation dimensions of its predecessor, the M6 135 allows for seamless, modification-free replacements and upgrades on compatible guitar headstocks.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| 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 threaded bushing |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| String Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
| Included Mounting Screws | M2.2 x 9.5 (0.37 in) |
