Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers refined tuning precision and smooth operation with an improved 1:18 gear ratio. Continuing the legacy of the original closed-housing design introduced in 1966, this upgraded model incorporates modern engineering enhancements while maintaining classic aesthetic appeal.
Every component is precision CNC-machined, surface-finished, and permanently lubricated with Schaller special grease for completely maintenance-free performance. High-grade brass posts fit into the housing to ensure optimal tuning stability, wear resistance, and sensitive adjustments.
Featuring the innovative stepped M6 flanged washer, this tuning machine reliably centers the string post via the banjo bolt and eliminates tilting torque without requiring stepped headstock holes. It shares identical installation dimensions with its predecessor model, allowing seamless replacement without guitar modifications.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Manufacturing Process | CNC-machined |
| Lubrication | Permanently lubricated with Schaller special grease |
| Single Tuner Weight (Metal Buttons) | 1.27 oz / 1.34 oz |
| Single Tuner Weight (Perloid/Ebony Buttons) | 1.06 oz / 1.09 oz |
| Button Bore Hole Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Flanged Washer Diameter | 0.39 in (10 mm) |
| Product Weight | 0.79 lb |
