Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine sets a benchmark for precision, stability, and smooth operation. Engineered with a refined 1:18 gear ratio, this closed-type machine head delivers exceptionally accurate and delicate tuning adjustments. CNC-machined components with precision-fitted brass string posts provide unmatched wear resistance and lasting tuning stability.
Equipped with an innovative stepped flanged washer, the M6 Pin ensures effortless headstock installation and robust post centering without the need for stepped drill holes. This mechanism effectively eliminates tilting torque while relieving mechanical stress from both the post and the rear mounting area. High-grade Schaller special grease provides permanent internal lubrication for completely maintenance-free performance.
Designed with standard 0.39 in (10 mm) center-to-center pin spacing and an 0.31 in (8 mm) distance from the post center, the M6 Pin serves as an ideal upgrade or direct replacement. Its self-locking drive and precision engineering deliver dependable performance for demanding players and builders alike.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Product Weight | 0.13 lb |
| String Post Material | Brass |
| Button Bore Hole Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Pin Spacing | 0.39 in (10 mm) |
| Pin to Post Distance | 0.31 in (8 mm) |
| Lubrication | Permanently lubricated with Schaller special grease |




















