Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 sets a high standard for closed guitar tuning machines with an advanced 1:18 gear ratio that delivers precise and velvety smooth tuning. Designed with high-precision CNC-machined parts and a self-locking drive, it guarantees consistent, sensitive, and stable instrument tuning.
Crafted with premium brass string posts precisely fitted into the housing, these tuners provide maximum tuning stability and wear-free operation. Every closed unit is permanently lubricated with specialized Schaller grease to ensure completely maintenance-free performance.
Featuring the innovative stepped M6 flanged washer with a 0.39 in (10 mm) base diameter, the tuner centers the string post securely through the banjo bolt without requiring a stepped headstock bore. This design eliminates tilting torque and reduces direct mechanical pressure on both the post and mounting screw.
| Brand | Schaller |
| Manufacturer | Schaller GmbH |
| Model | M6 180 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
| Single Tuner Weight 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 banjo bolt |
| Button Hole Bore | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) driving flat |
| Stepped Flanged Washer Base Diameter | 0.39 in (10 mm) |
| Mounting Screw Size | M2.2 x 0.37 in (9.5 mm) |
| Weight | 0.79 lb |





















