Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers exceptional tuning precision and stability with its advanced 1:18 gear ratio. CNC-machined components and high-grade brass string posts provide a velvet-smooth action, wear-free performance, and reliable self-locking function.
Featuring the innovative stepped M6 collar washer with a 0.39 in (10 mm) base diameter, this design accurately centers the string post via the banjo bolt without requiring stepped headstock drilling. This construction eliminates tilting moments and relieves mechanical pressure from both the post and the rear mounting screw.
Permanently lubricated with Schaller special grease for completely maintenance-free operation, the M6 135 shares identical mounting dimensions with its predecessor model, allowing for seamless drop-in replacement on standard headstocks.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight with Button (Per Single Unit) | 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) |
| Button Borehole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Product Weight | 0.79 lb (0.36 kg) |
| Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
