Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine sets an industry benchmark for closed tuners, featuring an upgraded 1:18 gear ratio that provides unmatched tuning precision and ultra-smooth operation. Designed to match the exact mounting dimensions of its predecessor, it allows seamless installation without headstock modifications.
Crafted with precision CNC machining, each tuner incorporates high-grade brass posts engineered for wear-free performance and exceptional tuning stability. All enclosed mechanisms are permanently lubricated with specialized grease for completely maintenance-free reliability.
An innovative stepped flanged washer centers the string post securely through the banjo bolt, eliminating tilt torque and protecting against excessive lateral pressure without requiring stepped headstock holes.
Brand
Schaller
Model
M6 135
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Post Material
Brass
Weight per Single Tuner with Button (Small/Large)
Metal (1.3 oz / 1.3 oz), Perloid (1.1 oz / 1.1 oz), Ebony (1.1 oz / 1.1 oz) including banjo bolt
Button Bore Hole
0.17 in diameter with 0.14 in drive flat
Mounting Screws Included
6 x M2.2 x 0.37 in
Washers Included
6 x Stepped Flanged Washers (0.39 in diameter)
Lubrication
Permanently lubricated, maintenance-free