Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets an industry benchmark with its advanced 1:18 gear ratio, delivering precise and velvety-smooth tuning stability. Engineered with high-precision CNC-machined components and self-locking drive technology, it ensures reliable and sensitive performance for demanding musicians.
Crafted with premium brass string posts fitted accurately into the housing, this enclosed tuner guarantees maximum wear resistance. All units are permanently lubricated with Schaller special grease, making them completely maintenance-free while maintaining their legendary durability and aesthetic appeal.
Featuring the innovative stepped M6 flanged washer, it eliminates tilting torque and secures proper string post centering without requiring stepped peghead boreholes. Retaining the exact installation dimensions of its predecessor, it serves as a seamless, modification-free upgrade for modern and vintage instruments.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Weight | 0.79 lb |
| Single Tuner Weight (Small/Large Button) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including banjonut |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Lubrication | Maintenance-free permanent lubrication with Schaller special grease |




















