Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets an industry benchmark for closed-type tuning machines, featuring a precise 1:18 gear ratio for smooth and accurate tuning stability. Crafted with high-precision CNC machining and high-grade brass posts fitted seamlessly into the housing, it ensures frictionless operation and lasting durability.
Equipped with Schaller's innovative stepped flanged washer, this tuning machine simplifies headstock installation by securely centering the string post without the need for stepped hole drilling. This design effectively absorbs pressure, eliminating tilting torque on both the string axis and the rear mounting screw.
Permanently lubricated with Schaller special grease for completely maintenance-free performance, the M6 135 shares identical mounting dimensions with its predecessor model, allowing for direct replacement and upgrades on standard guitar headstocks.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight | 0.13 lb |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| 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 banjonut |
| String Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |


















