Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 Guitar Tuning Machine represents the modern evolution of the legendary original sealed tuning machine established in 1966. Featuring a precise 1:18 gear ratio, it delivers ultra-smooth, delicate, and stable tuning performance for exceptional pitch accuracy.
Precision CNC-machined from premium materials, each unit incorporates high-grade brass posts fitted into the housing to ensure maximum tuning stability and long-lasting wear resistance. Internal components are permanently lubricated with Schaller special grease for completely maintenance-free operation.
Equipped with an innovative stepped M6 flanged washer, this tuner allows effortless installation and solid post centering without the need for a stepped peghead bore. It maintains identical mounting dimensions to its predecessor for direct replacement without instrument modifications.
| Brand | Schaller |
| Model | M6 90 |
| Product Line | M6 Series |
| SKU | 10050471.01.52 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight | 0.13 lb |
| 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 hollow screw |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Post Material | High-Grade Brass |
| Housing Design | Sealed, Permanently Lubricated |
