Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine sets a benchmark for closed tuners with an advanced 1:18 gear ratio that delivers velvet-smooth, highly precise tuning. Built with high-precision CNC-machined components and premium brass posts, it guarantees rock-solid tuning stability and wear-free operation over long-term use.
Featuring the innovative stepped M6 flanged washer, this tuning machine simplifies headstock installation while reliably centering the string post via the hollow bolt. This design eliminates tilting torque and relieves mechanical stress from both the post and the rear mounting fixture, ensuring smooth operation without requiring stepped headstock drilling.
Permanently lubricated with specialized Schaller grease, the internal self-locking drive remains completely maintenance-free. Designed with dual mounting pins spaced 10 mm center-to-center, the housing offers seamless replacement for compatible instruments and legacy pin-mount tuners.
| Brand | Schaller |
| Model | M6 Pin |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Pin Spacing (Center-to-Center) | 0.39 in |
| Pin to Post Center Distance | 0.31 in |
| Button Bore Hole Diameter | 0.17 in (with 0.14 in driving surface) |
| Weight per Unit (Metal Button, Small / Large) | 1.27 oz / 1.34 oz |
| Weight per Unit (Perloid Button, Small / Large) | 1.06 oz / 1.09 oz |
| Weight per Unit (Ebony Button, Small / Large) | 1.06 oz / 1.09 oz |
| Estimated Shipping Weight | 0.13 lb |




















