Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets a benchmark for closed tuners, featuring an upgraded 1:18 gear ratio for precise and velvety smooth tuning performance. High-precision CNC machining and high-grade brass string posts ensure optimal tuning stability, wear resistance, and long-lasting durability.
Equipped with an innovative stepped M6 flanged washer (0.39 in diameter), this tuner eliminates the need for a stepped peghead bore while perfectly centering the string post. The design effectively neutralizes tilting torque and removes mechanical stress from both the post and rear mounting screw.
Permanently lubricated with Schaller special grease for maintenance-free operation, the M6 135 maintains identical installation dimensions to its predecessor for direct, modification-free replacement.
| Brand | Schaller |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Single Tuner Weight with Button (Small/Large) | Metal (1.27 oz / 1.34 oz), Pearloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) |
| Total Weight | 0.79 lb |
| Post Material | High-Grade Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Included Hardware | 6x Banjo Bolts, 6x Flanged Washers, 6x Mounting Screws (M2.2 x 9.5) |
