Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers outstanding precision and tuning comfort with its refined 1:18 gear ratio. All components are high-precision CNC-machined and surface-finished, utilizing a self-locking drive mechanism to ensure smooth, delicate, and dependable tuning stability across all applications.
Crafted with premium high-grade brass posts precisely fitted into the housing, the M6 90 guarantees maximum tuning stability and wear-free performance. Closed housing units are permanently lubricated with Schaller special grease, making them completely maintenance-free over their entire lifespan.
Featuring the innovative stepped M6 flanged washer with a 0.39 in (10 mm) diameter base, this machine head reliably centers the string post without requiring step-drilled headstocks. This design eliminates tilting moments and relieves mechanical pressure on both the string post and rear fixing screw.
| SKU | 10050171.04.37 |
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) 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) |
| Lubrication | Permanently lubricated with Schaller special grease (maintenance-free) |
| Included Screws | M2, 2 x 0.37 in (9.5 mm) |
| Product Weight | 0.79 lb |


















