Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine sets an industry standard for closed tuning mechanisms, combining classic engineering with a refined 1:18 gear ratio. All components are CNC-machined and surface-treated to deliver a smooth, precise, and backlash-free tuning experience with maximum tuning stability.
Featuring high-grade brass string posts precisely fitted into the housing, this machine head offers exceptional wear resistance. The innovative stepped M6 flanged washer centers the post securely through the hollow screw, eliminating tilt torque and the need for a stepped peghead bore while reducing pressure on both the post and mounting points.
Permanently lubricated with Schaller special grease, the sealed design ensures completely maintenance-free operation over a long lifespan. Its two-pin mounting layout provides reliable rear stabilization and hassle-free installation on compatible headstocks.
| Brand | Schaller |
| Model Number | 1003 |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Pin Spacing (Center to Center) | 0.39 in |
| Distance Between Pins and Post Center | 0.31 in |
| Flanged Washer Diameter | 0.39 in |
| Button Bore Hole | Diameter 0.17 in with 0.14 in driving surface |
| Weight per Single Tuner with Button (Small / Large) | Metal: 1.27 oz / 1.34 oz, Perloid: 1.06 oz / 1.09 oz, Ebony: 1.06 oz / 1.09 oz |
| Lubrication | Permanent lubrication with special grease (maintenance-free) |


















