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 that provides smooth, precise, and highly stable instrument tuning. Engineered to match the exact mounting dimensions of previous generation models, it allows for hassle-free installation and direct retrofitting without modifying the guitar headstock.
Crafted with precision CNC machining and premium brass string posts fitted directly into the housing, these tuners deliver maximum tuning stability and long-lasting wear resistance. A specialized stepped M6 flanged washer reliably centers the string post through the banjonut, eliminating tilting torque, protecting mounting screws, and removing the need for a stepped headstock bore.
Permanently lubricated with Schaller special grease for entirely maintenance-free operation, this versatile tuning machine is designed to deliver lifetime performance. The self-locking drive and solid construction provide sensitive, velvety-smooth tuning action suitable for professional guitarists and demanding builders alike.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | High-Grade Brass |
| Weight | 0.13 lb |
| Weight per Single Tuner 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 banjonut |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with drive flat 0.14 in (3.6 mm) |
| Included Screws | M2.2 x 9.5 |
| Lubrication | Permanently lubricated with Schaller special grease |
