Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine features a precise 1:18 gear ratio that ensures smooth and accurate tuning stability. Built with CNC-machined components and high-grade brass string posts, it provides dependable performance and wear-free operation across demanding playing conditions.
Equipped with an innovative stepped M6 flanged washer, this tuning machine simplifies installation by reliably centering the string post without requiring a stepped peghead bore. This design eliminates tilting torque and reduces mechanical stress on both the post and mounting screws.
Permanently lubricated with Schaller special grease for maintenance-free longevity, the M6 135 shares identical installation dimensions with its predecessor model, allowing seamless drop-in replacement without guitar modifications.
| Gear Ratio | 1:18 |
| 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 |
| Button Borehole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Product Weight | 0.8 lb |
| Brand | Schaller |
| Series | M6 Series |
| Material | Brass posts, CNC-machined metal housing |
| Lubrication | Schaller special grease (maintenance-free) |




















