Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets an industry benchmark for closed tuners, featuring an upgraded 1:18 gear ratio that provides velvety smooth adjustment and outstanding tuning precision. Engineered with premium brass string posts precisely fitted into high-grade housing, this tuner ensures exceptional tuning stability and completely wear-free performance.
Precision CNC-machined components with durable surface finishes work alongside a self-locking drive mechanism to deliver consistent and delicate operation. The innovative stepped M6 collar washer reliably centers the string post over the threaded bushing, eliminating tilting torque, protecting mounting screws, and removing the need for stepped headstock drilling.
Designed with the exact mounting dimensions of its classic predecessor, the M6 135 enables seamless replacement without headstock modifications. Every closed tuning unit is permanently lubricated with Schaller special grease for entirely maintenance-free reliability.
| Brand | Schaller |
| Model | M6 135 |
| Gear Ratio | 1:18 |
| Material | Brass Posts, CNC Machined Housing |
| Weight | 0.79 lb |
| Weight per Single Tuner with Button (Small/Large) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including threaded bushing |
| Button Bore Hole | 0.17 in diameter with 0.14 in driving surface |
| Lubrication | Permanently lubricated with Schaller special grease |
| Collar Washer Diameter | 0.39 in |
