Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine sets an industry benchmark with its advanced 1:18 gear ratio, delivering ultra-precise, velvet-smooth tuning and exceptional pitch stability. Engineered with precision CNC-machined components and premium brass string posts, this closed tuning machine features a self-locking drive and permanent lubrication with Schaller special grease for completely maintenance-free operation.
Equipped with an innovative stepped M6 flanged washer, this tuner simplifies installation by reliably centering the string post without requiring a stepped headstock bore. This functional design eliminates tilting torque and relieves mechanical stress from both the post and the rear mounting hardware, ensuring robust long-term durability.
Designed to fit modern pin-mount headstock configurations with standard 10 mm pin spacing, the M6 Pin delivers flawless tuning stability and seamless performance across diverse playing styles and demanding stage environments.
| Brand | Schaller |
| Model | M6 Pin |
| Gear Ratio | 1:18 |
| Product Weight | 0.13 lb |
| Button Borehole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) driving surface |
| String Post Material | Brass |
| Pin Spacing | 0.39 in (10 mm) center-to-center |
| Post Center to Pin Distance | 0.31 in (8 mm) |
| Washer Diameter | 0.39 in (10 mm) |
| Lubrication | Permanently lubricated with Schaller special grease |




















