Schaller M6 Pin Guitar Tuning Machine

The Schaller M6 Pin guitar tuning machine features a refined 1:18 gear ratio that delivers precise, velvety-smooth tuning and exceptional pitch stability. High-precision CNC machining and high-grade brass string posts ensure wear-free performance, while permanent internal lubrication with Schaller special grease eliminates the need for ongoing maintenance.
An innovative stepped collar washer simplifies installation and reliably centers the post without requiring a stepped peghead bore. This design eliminates tilting moment and relieves mechanical stress from both the string post and the rear mounting pins, providing solid, long-term alignment.
Designed with a standard 0.39 in center-to-center two-pin spacing, these tuners offer direct replacement compatibility with earlier single-pin M6 housings. With a 0.31 in spacing from pin center to string post center, they provide a rock-solid, professional tuning solution for fine electric and acoustic guitars.
Brand
Schaller
Series
M6 Series
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Post Material
Brass
Pin Distance (Center to Center)
0.39 in
Pin to Post Center Distance
0.31 in
Fender Pin to Post Distance Comparison
0.46 in
Button Bore Hole
0.17 in diameter with 0.14 in drive flat
Weight per Single Tuner with Button
Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including threaded bushing
Total Weight
0.79 lb
Mounting Hardware Included
6 threaded bushings, 6 stepped collar washers, 6 mounting screws (M2.2 x 0.37 in)