Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 tuning machine provides exceptional tuning stability and smooth, velvety operation with an optimized 1:18 gear ratio. Each component is precision CNC-machined and surface-treated, featuring a self-locking drive that ensures consistent, highly sensitive adjustment.
Crafted with premium high-grade brass posts fitted seamlessly into the housing, this enclosed tuner guarantees maximum wear resistance and zero maintenance thanks to Schaller special grease permanent lubrication. The innovative stepped M6 flanged washer centers the string post securely without requiring stepped peghead holes, eliminating tilting torque and reducing strain on mounting hardware.
Engineered with the exact mounting dimensions as its classic predecessor, the M6 90 allows for seamless direct replacement on guitar headstocks. It offers outstanding reliability and flexible configuration options including locking and standard post varieties to suit any playing demand.
| Brand | Schaller |
| Model | M6 90 |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| 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), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw |
| Product Weight | 0.79 lb |
| Lubrication | Maintenance-free permanent lubrication with Schaller special grease |
