Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin tuning machine delivers exceptional tuning accuracy and velvety-smooth operation thanks to its refined 1:18 gear ratio. All components are CNC-machined to precise tolerances and surface-finished, featuring a self-locking drive that guarantees smooth, sensitive, and stable tuning.
Engineered for maximum durability and wear resistance, every string post is crafted from premium brass and seated accurately within the housing. The enclosed design is permanently lubricated with Schaller special grease, rendering the unit completely maintenance-free over its entire service life.
Installation is simplified by the innovative stepped M6 flanged washer, which centers the string post reliably across the hollow screw and eliminates tilt torque without requiring a stepped peghead bore. Dual rear pins ensure secure positioning on compatible guitar headstocks.
| Brand | Schaller |
| Model | M6 Pin |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Pin Spacing (Center to Center) | 0.39 in |
| Distance Between Pins and Center of String Post | 0.31 in |
| Button Bore Diameter | 0.17 in (with 0.14 in drive surface) |
| Weight | 0.79 lb |
| Lubrication | Permanently lubricated with Schaller special grease |


















