Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine represents high-precision engineering with an advanced 1:18 gear ratio, delivering ultra-precise, velvet-smooth tuning and exceptional stability. All components are CNC-machined and finished to exact tolerances, featuring self-locking brass posts seated perfectly in the housing for wear-free, reliable performance.
Featuring the innovative stepped M6 flanged washer, this tuner allows effortless installation while reliably centering the string post without requiring stepped peghead drilling. This design eliminates tilting torque and significantly reduces physical stress on both the string post and rear mounting screws.
Permanently lubricated with Schaller special grease for completely maintenance-free operation, the M6 90 matches the identical installation dimensions of its predecessor for seamless drop-in replacement on electric and acoustic guitars.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Model | M6 90 |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Weight per Single Tuner with Button (Small / Large) | Metal: 1.27 oz / 1.34 oz (36 g / 38 g), Perloid: 1.06 oz / 1.09 oz (30 g / 31 g), Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) |
| Product Weight | 0.13 lb |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
