Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets an industry benchmark for precision, tuning stability, and refined performance. Engineered with a 1:18 gear ratio, it delivers ultra-smooth adjustment and precise intonation retention. High-precision CNC-machined components and premium brass string posts ensure virtually wear-free operation inside fully enclosed, permanently lubricated housings.
Featuring the innovative stepped M6 flanged washer, this tuner guarantees solid shaft centering and hassle-free installation without requiring stepped headstock drilling. This smart design eliminates tilting torque and significantly reduces physical stress on both the post and the rear mounting screw. With identical installation dimensions to its predecessor, it serves as a seamless drop-in upgrade for guitars equipped with previous-generation M6 tuners.
Crafted to accommodate versatile configurations, the M6 series provides dependable performance for demanding musicians and instrument builders alike. Each unit is permanently lubricated with Schaller special grease for completely maintenance-free functionality. The included mounting screws and stepped washers ensure a stable, rigid fit directly out of the box.
| Brand | Schaller |
| Series | M6 Series |
| 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) 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) |
| Overall Product Weight | 0.79 lb |
| Included Hardware | 6 x flanged washers, 6 x M2.2 x 9.5 mm mounting screws |
| Lubrication | Schaller special grease (maintenance-free) |
