Schaller M6 Pin Guitar Tuning Machine

The Schaller M6 Pin guitar tuning machine delivers state-of-the-art tuning accuracy and smooth handling, powered by an optimized 1:18 gear ratio. All components are CNC-machined to precise tolerances and surface-finished, featuring a self-locking drive mechanism that ensures reliable, slip-free tuning stability across any performance situation.
Equipped with high-grade brass string posts engineered seamlessly into the housing, these tuners eliminate play and prevent premature mechanical wear. The innovative stepped M6 flanged washer centers the string post securely through the hollow screw, removing lateral tilting torque and protecting both the post and mounting hardware without requiring stepped headstock drilling.
Designed with closed housing construction and permanently lubricated with proprietary Schaller grease, these machine heads remain entirely maintenance-free over their full operational lifespan. The two-pin mounting layout features a standard 0.39 in center-to-center pin spacing with a 0.31 in distance from the pins to the center of the post for direct, solid alignment.
Brand
Schaller
Product Type
Guitar Tuning Machine
Series
M6 Series
Gear Ratio
1:18
String Post Material
High-Grade Brass
Total Weight
0.79 lb
Pin Spacing (Center to Center)
0.39 in
Pin to Post Center Distance
0.31 in
Button Bore Hole
0.17 in diameter with 0.14 in drive flat
Included Hardware
6x Banjo Bolts, 6x Flanged Washers, 6x M2.2 x 9.5 Mounting Screws