Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets a benchmark for closed tuning machines, offering precise functionality with an upgraded 1:18 gear ratio for smooth, accurate tuning. Every component is CNC-machined to precise tolerances and permanently lubricated with Schaller special grease for maintenance-free reliability.
Crafted with premium brass string posts precisely fitted into the housing, this machine head provides maximum tuning stability and wear-free performance. The self-locking drive delivers consistent, delicate, and dependable adjustments across all string tensions.
An innovative stepped M6 flanged collar facilitates hassle-free installation by self-centering the string post via the banjo bolt without requiring stepped headstock drilling. This smart design effectively absorbs lateral pressure, eliminating tilt torque on both the post and mounting screw.
| Brand | Schaller |
| Model | M6 90 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Weight per Single Unit (Small/Large Button) | 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 Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Product Weight | 0.79 lb |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
