Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine features a refined 1:18 gear ratio that delivers exceptional tuning precision and ultra-smooth operation. Setting the global benchmark for closed tuners since 1966, this upgraded model combines classic heritage with modern engineering innovations.
Every component is precision CNC-machined and surface-finished, utilizing high-grade brass string posts engineered to eliminate wear and ensure absolute pitch stability. An innovative stepped M6 flanged washer centers the post reliably without requiring a stepped headstock bore, effectively removing tilting torque and relieving mechanical stress.
Featuring permanently lubricated Schaller special grease, these sealed tuners are completely maintenance-free. Designed with dual rear indexing pins spaced at 0.39 in (10 mm), they maintain standard housing dimensions for seamless installation and replacement.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Pin Spacing (Center to Center) | 0.39 in (10 mm) |
| Pin to Center of String Post Distance | 0.31 in (8 mm) |
| Button Bore Hole Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight per Single Tuner (Metal Small / Large) | 0.08 lb (36 g) / 0.08 lb (38 g) |
| Weight per Single Tuner (Perloid/Ebony Small / Large) | 0.07 lb (30 g) / 0.07 lb (31 g) |
| Mounting Screw Size | M2.2 x 0.37 in (9.5 mm) |
| Product Weight | 0.79 lb |
