Schaller M6 90 Guitar Tuning Machine

The Schaller M6 90 guitar tuning machine delivers refined performance and dependable tuning stability for discerning musicians. Engineered with a 1:18 gear ratio, it provides a smooth, precise tuning experience with velvet-like rotation. High-precision CNC-machined components and surface finishes ensure lasting durability and effortless handling.
Crafted with premium brass posts fitted directly into the sealed housing, the M6 90 guarantees wear-free operation and supreme pitch retention. All sealed units are permanently lubricated with Schaller special grease for entirely maintenance-free longevity across diverse playing environments.
Featuring the innovative stepped flanged washer, this tuning machine simplifies installation by reliably centering the string post without requiring stepped peghead drilling. It shares identical mounting dimensions with legacy models, allowing seamless upgrades and direct replacements.
Brand
Schaller
Model
M6 90
Product Type
Guitar Tuning Machine
Series
M6 Series
Gear Ratio
1:18
Post Material
Brass
Lubrication
Schaller Special Grease (Permanent)
Button Bore Hole Diameter
0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat
Single Tuner Weight with Button (Small / Large)
Metal: 1.27 oz / 1.34 oz (36 g / 38 g); Perloid: 1.06 oz / 1.09 oz (30 g / 31 g); Ebony: 1.06 oz / 1.09 oz (30 g / 31 g)
Total Weight
0.79 lb