Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine represents high precision and tuning comfort with its refined 1:18 gear ratio. All components are CNC-machined to exact tolerances, surface-treated, and feature a self-locking drive mechanism that ensures smooth, responsive, and stable tuning.
Crafted with premium brass string posts precisely fitted into the housing, this closed tuner guarantees exceptional tuning stability and long-lasting wear resistance. Each unit is permanently lubricated with Schaller special grease, rendering the enclosed mechanism entirely maintenance-free.
Installation is simplified through the stepped M6 collar washer, which reliably centers the string post via the banjo bolt and eliminates the need for stepped headstock drilling. This design absorbs lateral torque and relieves pressure from both the post and the rear mounting screw while retaining identical mounting dimensions to predecessor models for drop-in replacement.
| Brand | Schaller |
| Model Number | 1005 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| 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) including hollow screw |
| Product Weight | 0.79 lb |
| Lubrication | Permanently lubricated with Schaller special grease |
