Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers outstanding precision and tuning comfort with an optimized 1:18 gear ratio. Designed with CNC-machined components and surface-finished parts, it utilizes a self-locking drive mechanism to ensure smooth, delicate, and dependable tuning stability.
Crafted with premium brass posts fitted directly into the housing, this closed machine head offers wear-free performance and exceptional longevity. Permanent lubrication with specialized Schaller grease ensures the entire enclosed unit remains completely maintenance-free over years of playing.
Featuring the innovative stepped M6 flanged washer, this tuner allows straightforward mounting without requiring stepped peghead holes. It reliably centers the string post via the banjo bolt, eliminating tilting moment and relieving mechanical stress on both the post and rear mounting screw.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
| Weight | 0.13 lb |
| Weight per Single Tuner with Button (Small/Large) | Metal (0.08 lb / 0.08 lb), Perloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) including banjo bolt |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |




















