Schaller M6 135 Guitar Tuning Machine

The Schaller M6 135 guitar tuning machine sets an industry benchmark for closed-type tuners, combining legendary heritage with modern precision engineering. Featuring a refined 1:18 gear ratio, it ensures precise, velvet-smooth tuning and maximum stability.
Every component is CNC-machined and surface-treated for flawless operation. The high-grade brass string posts are fitted accurately into the housing, while the self-locking drive and permanently lubricated design provide completely maintenance-free performance.
Engineered with the innovative stepped M6 flanged washer, this tuning machine reliably centers the string post without requiring stepped headstock drilling, eliminating tilting torque and reducing pressure on mounting screws.
Brand
Schaller
Product Type
Guitar Tuning Machine
Series
M6 Series
Model
M6 135
Gear Ratio
1:18
String Post Material
Brass
Button Bore Hole
0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat
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)
Product Weight
0.13 lb
Mounting Screws Included
M2.2 x 9.5 mm
Lubrication
Schaller Special Grease (Maintenance-Free)