Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine sets a benchmark for closed tuners with its refined 1:18 gear ratio, delivering velvety-smooth operation and unmatched tuning precision. All components are CNC-machined to exact tolerances and surface-finished, utilizing a self-locking drive mechanism to ensure consistent, highly sensitive, and stable tuning.
Equipped with high-grade brass string posts that fit snugly into the housing, this tuning machine provides maximum wear resistance and rock-solid pitch stability. The innovative stepped M6 flanged washer reliably centers the string post without requiring a stepped headstock hole, eliminating tilt torque and protecting mounting hardware from excessive stress.
Designed for straightforward installation and maintenance-free longevity, each closed tuner is permanently lubricated with Schaller special grease. The two-pin mounting design ensures exact positioning and seamless replacement for compatible headstock configurations.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Pin Spacing (Center to Center) | 0.4 in |
| Pin to Post Center Distance | 0.3 in |
| Button Bore Hole | 0.2 in diameter with 0.1 in driving surface |
| Total Weight | 0.8 lb |
| Lubrication | Schaller Special Grease (Permanently Lubricated) |




















