Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine sets an industry benchmark for precision and tuning stability, featuring an upgraded 1:18 gear ratio for exceptionally smooth and accurate adjustments. Every component is CNC-machined to exact tolerances, delivering reliable operation with self-locking drive functionality and wear-free brass string posts.
Equipped with the innovative stepped M6 flanged washer, this tuner allows hassle-free installation and permanent center alignment of the post without requiring a stepped peghead bore. This advanced design eliminates tilting torque and significantly reduces physical strain on both the string post and rear mounting hardware.
Engineered for lifetime durability, each sealed housing is lubricated with Schaller special grease for completely maintenance-free performance. Designed with standard 10 mm pin spacing and precise 8 mm post-to-pin offset, it provides seamless replacement and superior mechanical performance on solid headstock guitars.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 Pin |
| Gear Ratio | 1:18 |
| Pin Spacing (Center to Center) | 0.39 in. (10 mm) |
| Pin to String Post Center Distance | 0.31 in. (8 mm) |
| Button Bore Hole | Diameter 0.17 in. (4.2 mm) with 0.14 in. (3.6 mm) flat |
| Single Tuner Weight with Button (Small/Large) | Metal (0.079 lb/0.084 lb), Pearloid (0.066 lb/0.068 lb), Ebony (0.066 lb/0.068 lb) including threaded bushing |
| String Post Material | High-Grade Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Included Hardware | 6 threaded bushings, 6 stepped flanged washers, 6 mounting screws (M2.2 x 9.5 mm) |
| Product Weight | 0.79 lb |





















