Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine offers precision engineering and effortless tuning stability with an improved 1:18 gear ratio. CNC-machined components and high-grade brass string posts ensure smooth, sensitive, and wear-free operation for solid or slotted headstocks.
Featuring the innovative stepped M6 flanged washer, this tuning machine simplifies installation by reliably centering the string post via the banjo bolt. This eliminates tilting movement, relieves stress on mounting screws, and removes the need for stepped peghead holes.
Every enclosed tuner is permanently lubricated with Schaller special grease for completely maintenance-free performance. Retaining the exact mounting dimensions of its predecessor, it provides a direct replacement upgrade without body modifications.
| Gear Ratio | 1:18 |
| Weight per Single Tuner with Button (Small/Large) | Metal (0.08 lb / 0.08 lb), Perloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) including banjo bolt |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Product Weight | 0.13 lb |
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |




















