Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets a benchmark for enclosed tuners with its refined 1:18 gear ratio, delivering precise, velvety-smooth tuning and exceptional pitch stability. High-precision CNC-machined components and high-grade brass string posts ensure virtually wear-free performance, complemented by permanent internal lubrication with Schaller special grease for maintenance-free operation.
Featuring the innovative stepped M6 flanged washer, this tuning machine simplifies installation while reliably centering the string post through the threaded bushing without requiring a stepped headstock bore. This design eliminates tilting torque and distributes structural pressure away from both the post and the rear mounting screw.
Built with identical mounting dimensions to its classic predecessor, the M6 135 offers a direct drop-in replacement without requiring headstock modifications. Every unit is engineered for enduring stability and smooth, sensitive operation across diverse playing demands.
| Gear Ratio | 1:18 |
| Flanged Washer Diameter | 0.39 in |
| Button Bore Hole | Diameter 0.17 in with 0.14 in drive flat |
| Weight per Single Tuner with Button (Small/Large) | Metal (1.27 oz/1.34 oz), Pearloid (1.06 oz/1.09 oz), Ebony (1.06 oz/1.09 oz) including hollow screw |
| Weight | 0.13 lb |
| Brand | Schaller |
| Model | M6 135 |
| Series | M6 Series |
| String Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
