Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 Guitar Tuning Machine sets an industry standard for closed tuning machines, combining timeless design with modern precision engineering. Featuring a refined 1:18 gear ratio, it delivers ultra-smooth operation, delicate tuning sensitivity, and exceptional pitch stability.
Every component is CNC-machined to precise tolerances and surface-treated for maximum durability, while the high-grade brass string posts fit flawlessly into the housing to eliminate wear. The closed housing design comes permanently lubricated with Schaller special grease, ensuring maintenance-free performance throughout its lifespan.
The innovative stepped M6 flanged washer centers the string post automatically through the threaded bushing without requiring a stepped headstock bore. This specialized mounting system eliminates tilting moments and relieves mechanical pressure from both the post and the rear mounting screw.
| Gear Ratio | 1:18 |
| Weight per Single Tuner 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 threaded bushing |
| Button Borehole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Product Weight | 0.13 lb |
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Lubrication | Permanently lubricated with Schaller special grease, maintenance-free |
| Post Material | High-grade brass |





















