Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine sets a high standard for closed tuning systems, featuring an advanced 1:18 gear ratio for ultra-precise and smooth tuning action. Each component is precision CNC-machined, surface-finished, and driven by a self-locking mechanism to ensure consistent, responsive, and stable tuning performance.
Equipped with high-grade brass string posts engineered for maximum tuning stability and wear resistance, these tuners also feature the innovative stepped M6 flanged washer. This washer reliably centers the string post through the hollow screw without requiring a stepped headstock hole, eliminating tipping moments and taking strain off both the post and rear mounting screws.
Permanently lubricated with Schaller special grease for completely maintenance-free operation, the M6 Pin utilizes a two-pin fixing pattern with a 10 mm pin-to-pin spacing and an 8 mm distance between the pins and post center, making it a reliable and durable upgrade for fine guitars.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Weight | 0.13 lb |
| Single Tuner Weight (Metal Buttons) | 1.27 oz / 1.34 oz (Small / Large) |
| Single Tuner Weight (Perloid Buttons) | 1.06 oz / 1.09 oz (Small / Large) |
| Single Tuner Weight (Ebony Buttons) | 1.06 oz / 1.09 oz (Small / Large) |
| Pin-to-Pin Distance | 0.39 in (10 mm) |
| Pin-to-Post Center Distance | 0.31 in (8 mm) |
| Washer Stepped Diameter | 0.39 in (10 mm) |
| Included Hardware | 6x Hollow Screws, 6x Flanged Washers, 6x Mounting Screws |
| Lubrication | Schaller Special Grease (Maintenance-Free) |




















