Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine offers precision engineering and smooth tuning stability with a refined 1:18 gear ratio. Designed to match the exact mounting dimensions of its predecessor, it allows direct, modification-free replacement on compatible headstocks.
Every component is CNC-machined for high precision and surface-finished to ensure lasting durability. High-grade brass string posts fit tightly within the housing, while permanent internal lubrication with Schaller special grease delivers maintenance-free, self-locking operation.
Featuring the innovative stepped M6 flanged bushing, this tuning machine reliably centers the string post via the hollow bolt without requiring a stepped peghead bore. This design eliminates tilting torque and distributes pressure away from both the post and the rear mounting screw.
| Brand | Schaller |
| Series | M6 Series |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Borehole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight per Single 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 | Permanently lubricated with Schaller special grease |
| Mounting Hardware Included | Hollow bolts, flanged washers, and M2.2 x 9.5 mounting screws |
| Product Weight | 0.13 lb |
