Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine sets an industry benchmark for precision and reliability, featuring an advanced 1:18 gear ratio that ensures ultra-smooth and accurate tuning. Every component is CNC-machined to exact tolerances, surface-finished for durability, and equipped with a self-locking drive mechanism for uncompromising pitch stability.
Engineered with premium brass string posts precision-fitted into sealed housings, these tuners eliminate internal wear and deliver permanent maintenance-free operation thanks to specialized Schaller internal lubrication. The innovative stepped M6 flanged washer centers the string post flawlessly via the threaded bushing without requiring stepped headstock drilling.
By directly supporting the string post and fastening hardware, the stepped washer design eliminates tilting moments and relieves structural strain across the assembly. Featuring a standardized 0.39 in (10 mm) pin spacing, the M6 Pin offers a seamless upgrade path for modern guitar builds and headstocks.
| Brand | Schaller |
| Model | M6 Pin |
| Series | M6 Series |
| Product Type | Guitar Tuning Machines |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Pin Spacing | 0.39 in |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Product Weight | 0.79 lb |
| Single Tuner Weight (Metal Buttons) | Small: 0.08 lb (36 g), Large: 0.08 lb (38 g) |
| Single Tuner Weight (Perloid/Ebony Buttons) | Small: 0.07 lb (30 g), Large: 0.07 lb (31 g) |
