Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin Guitar Tuning Machine sets an industry standard for closed tuning mechanisms, combining legendary heritage with modern engineering. Engineered with a 1:18 gear ratio, it delivers velvety-smooth action, sensitive adjustment, and exceptional tuning stability. Every component is CNC-machined to exacting tolerances and treated with high-grade finishes for long-lasting performance.
Equipped with high-grade brass string posts precision-fitted into the housing, this tuning machine provides maximum wear resistance and dependable tuning retention. The innovative stepped M6 flanged washer centers the string post via the banjo bolt with solid reliability, preventing tilting torque and removing excess pressure from both the post and rear mounting screws without requiring stepped headstock drill holes.
Featuring permanent internal lubrication with Schaller special grease, the sealed design ensures completely maintenance-free operation over years of active playing. Built with dual rear positioning pins spaced 0.39 in (10 mm) center-to-center and an offset of 0.31 in (8 mm) to the post center, it provides a secure fit on compatible headstocks.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Model Number | 1003 |
| Gear Ratio | 1:18 |
| Pin Spacing (Center to Center) | 0.39 in (10 mm) |
| Pin to Post Center Distance | 0.31 in (8 mm) |
| Button Bore Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) flat |
| Post Material | Brass |
| Product Weight | 0.13 lb |
