Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets a benchmark for closed tuning machines, featuring a precise 1:18 gear ratio for exceptionally smooth and accurate tuning stability. Built with CNC-machined components and high-grade brass posts, it guarantees long-term durability and self-locking operation.
Featuring the innovative stepped M6 flanged washer, this tuning machine ensures secure axis centering via the banjo bolt without requiring a stepped peghead bore. This design eliminates tilting torque and reduces mechanical stress on the post and rear mounting screw.
Permanently lubricated with Schaller special grease for maintenance-free performance, the M6 135 maintains identical installation dimensions to its predecessor, allowing seamless replacement without headstock modifications.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) driving surface |
| Weight per Unit (Small / Large Button) | Metal: 1.27 oz / 1.34 oz (36 g / 38 g), Perloid: 1.06 oz / 1.09 oz (30 g / 31 g), Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) |
| Lubrication | Schaller special grease (maintenance-free) |
| Product Weight | 0.13 lb |




















