Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets a high standard for closed tuning machines, combining precision engineering with outstanding tuning stability. Featuring an optimized 1:18 gear ratio, it delivers an exceptionally smooth, accurate, and sensitive tuning experience.
Precision CNC-machined components with premium surface finishes ensure lasting reliability, while high-grade brass string posts provide wear-free performance. The self-locking drive and permanently lubricated sealed housing with Schaller special grease guarantee completely maintenance-free operation.
Equipped with an innovative stepped M6 flanged washer, this tuning machine centers the string post securely without requiring stepped peghead counterbores. This design eliminates tilting torque and reduces strain on both the post and mounting screw, matching the exact installation dimensions of its classic predecessor for easy drop-in replacement.
| Brand | Schaller |
| Series | M6 Series |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Weight per Single Tuner with Button (Small / Large) | 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) including threaded bushing |
| Post Material | High-Grade Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
| Included Hardware | Threaded bushings, flanged washers, and M2.2 x 0.37 in (9.5 mm) mounting screws |
