Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets an industry benchmark for closed tuners, featuring an upgraded 1:18 gear ratio for smooth, velvety tuning and precise intonation. Each component is CNC-machined to exact tolerances and surface-finished, utilizing a self-locking drive mechanism that guarantees consistent, rock-solid tuning stability.
Crafted with premium high-grade brass string posts fitted directly into the housing, these tuners deliver long-term wear resistance and superior acoustic stability. The innovative stepped M6 flanged washer centers the string post securely through the hollow screw, preventing tilt without requiring stepped headstock drilling and protecting both the post and rear mounting screws.
Engineered to match the identical footprint of its predecessor, the M6 135 allows for seamless drop-in replacement without instrument modifications. Sealed permanently with specialized Schaller lubricant, these tuning machines provide completely maintenance-free operation over their entire lifespan.
| Gear Ratio | 1:18 |
| Weight with Button per Unit (Small/Large) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including banjo bolt |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving flat 0.14 in (3.6 mm) |
| Product Weight | 0.79 lb |
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| String Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
