Schaller M6 Pin Guitar Tuning Machine

The Schaller M6 Pin guitar tuning machine features a precise 1:18 gear ratio, delivering smooth and accurate tuning stability for solid headstock instruments. Built with CNC-machined components and high-grade brass posts, each unit is permanently lubricated with Schaller special grease for maintenance-free performance.
Equipped with the innovative stepped M6 collar washer, this tuner centers the string post reliably through the hollow screw without requiring a stepped peghead bore. This advanced design eliminates tilting torque and relieves pressure from both the post and the rear mounting screws.
Featuring a dual-pin mounting configuration with a 0.4 in (10 mm) pin spacing and 0.3 in (8 mm) post-to-pin center distance, it serves as a seamless upgrade or direct replacement for closed-gear headstock installations.
Brand
Schaller
Model
1003
Series
M6 Series
Product Type
Guitar Tuning Machine
Gear Ratio
1:18
Weight
0.1 lb
Single Unit Weight (Metal Small/Large)
1.3 oz / 1.3 oz
Single Unit Weight (Perloid Small/Large)
1.1 oz / 1.1 oz
Single Unit Weight (Ebony Small/Large)
1.1 oz / 1.1 oz
Button Borehole
Diameter 0.2 in with 0.1 in driving flat
Pin Spacing (Center to Center)
0.4 in
Pin to Post Center Distance
0.3 in
Collar Washer Step Diameter
0.4 in
Post Material
Brass
Lubrication
Permanently lubricated with Schaller special grease