Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 Guitar Tuning Machine sets an industry standard with its precise 1:18 gear ratio, delivering ultra-smooth and accurate tuning stability. Building on the iconic closed-housing design introduced in 1966, this updated edition features high-precision CNC-machined components and surface-refined assemblies. The self-locking internal drive mechanism ensures velvety-smooth operation, reliable friction retention, and dependable performance across demanding playing environments.
Crafted with durability at the core, each string post is precision-turned from high-grade brass and matched flawlessly to the housing for wear-free rotation. The innovative stepped M6 flanged washer (0.39 in / 10 mm diameter) centers the string post securely via the hollow screw, eliminating tipping torque and taking pressure off the mounting screws on the back of the headstock. This intelligent design allows effortless installation directly onto the headstock without requiring complex counterbore drilling.
Fully permanently lubricated with proprietary Schaller special grease, every closed machine is completely maintenance-free. With compact housing dimensions, the M6 180 easily replaces previous-generation models without headstock modifications, providing an ideal upgrade for both acoustic and electric guitars.
| SKU | 10010671.04.20 |
| Brand | Schaller |
| Manufacturer | Schaller GmbH |
| Model Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving flat 0.14 in (3.6 mm) |
| Flanged Washer Diameter | 0.39 in (10 mm) |
| Weight per Single Tuner with Button (Small / Large) | Metal (1.27 oz / 1.34 oz), Pearloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw |
| Weight | 0.13 lb |
| Lubrication | Permanently lubricated with Schaller special grease |





















