Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets an industry benchmark for closed-type tuners, combining legendary heritage with refined German engineering. Featuring an advanced 1:18 gear ratio, it delivers velvety-smooth feel, ultra-precise adjustments, and unmatched tuning stability for high-performance instruments.
Crafted with CNC-machined components and premium brass string posts, every tuner is permanently lubricated with Schaller special grease to remain entirely maintenance-free. The self-locking drive mechanism and precision-fit housing prevent slippage and eliminate wear during intensive playing sessions.
Installation is straightforward thanks to the stepped M6 flanged washer, which centers the string post securely without requiring stepped peghead drilling. With identical mounting dimensions to its classic predecessor, it serves as a seamless drop-in replacement or premium upgrade.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| 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 |
| Mounting Screws Included | M2.2 x 9.5 mm |
| Flanged Washer Diameter | 0.39 in (10 mm) |
| Lubrication | Permanently lubricated with Schaller special grease |
