Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets the benchmark for closed guitar tuning machines with an advanced 1:18 gear ratio, delivering velvet-smooth operation and unmatched tuning precision. Built with precision CNC-machined components and high-grade brass string posts, it ensures lasting tuning stability and completely wear-free performance.
Featuring the innovative stepped M6 flanged washer, this tuner allows effortless installation and solid post centering without the need for stepped peghead bore holes. This design eliminates tilting moments and relieves mechanical pressure from both the post and the rear mounting screws.
Permanently lubricated with Schaller special grease, all enclosed components are entirely maintenance-free. With mounting dimensions identical to its predecessor, the M6 90 provides an effortless drop-in upgrade for modern and vintage instruments alike.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model Number | 1005 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | High-Grade Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Button Borehole | Diameter 4.2 mm (0.17 in) with 3.6 mm (0.14 in) drive surface |
| Individual Tuner Weight (Small/Large Button) | 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) |
| Product Weight | 0.79 lb |
