Schaller M6 180 Guitar Tuning Machine
The Schaller M6 180 sets an uncompromising benchmark for closed guitar tuning machines, engineered with a precise 1:18 gear ratio for exceptionally smooth, velveteen tuning accuracy and rock-solid pitch stability. All structural components are high-precision CNC-machined and finished with a self-locking drive mechanism to eliminate slippage during aggressive play.
Crafted with premium high-grade brass string posts fitted directly into the housing, these tuners deliver long-lasting, wear-free performance. The specialized stepped M6 flanged washer centers the string post securely through the threaded bushing without requiring step-drilling in the headstock, effectively eliminating tilting torque and reducing stress on the rear mounting screws.
Designed for complete maintenance-free operation, every closed housing is permanently lubricated with proprietary Schaller special grease. The compact footprint allows seamless retrofitting on modern and vintage instruments alike, offering unmatched tuning comfort and acoustic reliability.
| Brand | Schaller |
| Model | M6 180 |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Lubrication | Schaller Special Grease (Permanently Lubricated) |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| 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 threaded bushing |
| Product Weight | 0.79 lb |





















