Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine features a refined 1:18 gear ratio that delivers exceptional precision and smooth, velvet-like tuning stability. Built with CNC-machined components and premium brass string posts, each closed unit utilizes a self-locking drive and permanent grease lubrication for maintenance-free performance.
Equipped with an innovative stepped collar washer featuring a 0.39 in (10 mm) base diameter, this design accurately centers the string post through the banjo bolt without requiring stepped headstock drilling. This configuration eliminates tilting moment and reduces mechanical stress on both the post and the rear mounting screw.
Designed with identical installation dimensions to its classic predecessor, the M6 135 allows direct retrofitting without instrument modifications. High-grade construction materials ensure outstanding wear resistance, long-lasting reliability, and uncompromising tuning stability.
| Brand | Schaller |
| Series | M6 Series |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight | 0.79 lb |
| 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 banjo bolt |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Post Material | Brass |
| Lubrication | Schaller Special Grease (Permanently Lubricated) |
