Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine delivers outstanding precision and tuning comfort with an improved 1:18 gear ratio. Each component is CNC-machined and finished to exact tolerances, featuring a self-locking drive mechanism that guarantees smooth, sensitive, and stable tuning.
Equipped with high-grade brass string posts fitted directly into the housing, this closed tuner ensures optimal tuning stability and wear-free performance. The specialized stepped M6 flanged washer centers the string post reliably through the hollow screw, eliminating tilting torque and protecting the headstock without requiring stepped drilling.
Permanently lubricated with Schaller special grease, this tuner is completely maintenance-free. Designed with dual rear indexing pins spaced 0.39 in (10 mm) center-to-center and an 0.31 in (8 mm) pin-to-post distance, it offers seamless installation and rock-solid instrument alignment.
| Brand | Schaller |
| Model | M6 Pin |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Weight per Unit 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) including hollow screw |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Pin Spacing (Center to Center) | 0.39 in (10 mm) |
| Pin to Post Center Distance | 0.31 in (8 mm) |
| Post Material | Brass |
| Lubrication | Schaller special grease (maintenance-free) |
| Product Weight | 0.13 lb |




















