Schaller M6 90 Guitar Tuning Machine

The Schaller M6 90 guitar tuning machine delivers legendary precision and superior tuning comfort. Engineered with a refined 1:18 gear ratio and self-locking drive, it provides exceptionally smooth, reliable, and stable tuning performance.
Crafted with CNC-machined components and high-grade brass posts, every tuner is precisely fitted into the housing for maximum wear resistance and tuning stability. Permanently lubricated with Schaller special grease, the sealed design ensures completely maintenance-free operation.
Featuring the innovative stepped M6 flanged washer, this tuning machine centers the string post reliably through the banjonut without requiring stepped headstock peg holes. It matches the exact mounting dimensions of its predecessor for seamless drop-in replacement.
Gear Ratio
1:18
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 banjonut
Button Bore Hole
Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat
Brand
Schaller
Series
M6 Series
Product Type
Guitar Tuning Machine
Post Material
Brass
Lubrication
Maintenance-free sealed lubrication with Schaller special grease
Item Weight
0.79 lb