Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine continues a legendary standard in precision tuning, engineered with a refined 1:18 gear ratio for smooth, accurate, and stable pitch adjustment. Each component is CNC-machined to exact tolerances, featuring high-grade brass posts and a self-locking drive that provides consistent, play-free operation.
Featuring the innovative stepped M6 flanged washer, this tuning machine centers the string post perfectly via the threaded bushing, eliminating the need for a stepped peghead bore and removing side-load strain from both the post and rear mounting screw. Sealed housings are permanently lubricated with Schaller special grease to provide lifelong, maintenance-free performance.
Built with identical mounting dimensions to its classic predecessor, the M6 135 offers a straightforward drop-in replacement on standard headstocks without requiring body or neck modifications.
| Gear Ratio | 1:18 |
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| String Post Material | Brass |
| Peg Bore Diameter | 0.2 in (4.2 mm) |
| Drive Flat Measurement | 0.1 in (3.6 mm) |
| Weight per Unit (Small/Large Button) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) |
| Product Weight | 0.79 lb |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Included Screws | M2.2 x 9.5 mm |
