Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine offers exceptional precision and tuning stability, featuring an improved 1:18 gear ratio for smooth and accurate adjustments. Built upon the legendary enclosed tuning design established in 1966, this updated edition incorporates modern CNC manufacturing for sensitive, uniform operation and long-lasting durability.
Crafted with premium brass string posts precision-fitted into the housing, each unit ensures high wear resistance and consistent performance. The innovative stepped M6 flanged washer centers the string post securely through the banjo bolt without requiring stepped headstock drilling, effectively eliminating tilt and reducing structural tension.
All enclosed components are permanently lubricated with Schaller special grease for completely maintenance-free service. With identical mounting dimensions to its predecessor, the M6 135 allows direct, drop-in replacement without modifying the headstock.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Weight | 0.13 lb |
| Single Unit Weight 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 Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Flanged Washer Diameter | 0.39 in (10 mm) |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
