Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets an industry benchmark for closed-type tuners, engineered with high-precision CNC manufacturing for smooth operation and lasting durability. Featuring an optimized 1:18 gear ratio, it ensures precise, velvet-smooth tuning and maximum pitch stability.
Equipped with an innovative stepped M6 flanged washer, this tuner allows effortless installation while reliably centering the string post to eliminate tilting torque and stress on mounting hardware. High-grade brass string posts and permanently lubricated internal components provide long-lasting, maintenance-free performance.
Designed with standard mounting dimensions identical to its predecessor, the M6 135 offers a direct drop-in replacement without requiring headstock modifications. It delivers exceptional tuning precision and robust construction for electric and acoustic guitars.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| 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 | Metal: 1.27 oz / 1.34 oz (36 g / 38 g), Pearloid: 1.06 oz / 1.09 oz (30 g / 31 g), Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) |
| Product Weight | 0.13 lb |
| Lubrication | Permanently lubricated with Schaller special grease |




















