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 for velvety smooth, precise tuning. Every component is CNC-machined to exact tolerances, featuring brass posts precisely fitted into the housing to ensure exceptional tuning stability and zero wear.
Featuring the innovative stepped M6 flanged collar, this tuning machine simplifies installation by reliably centering the string post via the hollow bolt without requiring stepped headstock drilling. This smart design eliminates tilting torque and absorbs tension from both the string post and rear fixing screws.
Permanently lubricated with Schaller special grease, all enclosed mechanisms are completely maintenance-free. Designed with two alignment pins at a 10 mm center-to-center spacing, it provides a secure fit and clean aesthetic for premium guitar upgrades and custom builds.
| Brand | Schaller |
| Model Number | 1003 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Mounting Type | Two-Pin (10 mm / 0.39 in spacing) |
| Pin-to-Post Center Distance | 8 mm / 0.31 in |
| Button Bore Hole Diameter | 4.2 mm / 0.17 in (3.6 mm / 0.14 in drive flat) |
| Weight | 0.13 lb |
| Lubrication | Schaller Special Grease (Maintenance-Free) |




















