Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine delivers outstanding tuning stability and velvety-smooth operation with its refined 1:18 gear ratio. Each component is CNC-machined to precise tolerances and finished with a high-grade surface coating, while high-quality brass string posts ensure wear-free, dependable performance.
Featuring the innovative stepped M6 flanged washer, this tuning machine simplifies installation and reliably centers the string post without requiring a stepped headstock bore. The enclosed housing comes permanently lubricated with Schaller special grease for maintenance-free longevity and consistent self-locking action.
Equipped with a dual-pin mounting base featuring a 0.39-inch (10 mm) pin spacing and an 0.31-inch (8 mm) center-to-post distance, the M6 Pin offers direct fitment and flawless retrofitting for compatible solid headstock guitars.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Pin Spacing (Center to Center) | 0.39 in (10 mm) |
| Distance Between Pins and Post Center | 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 with Button (Small / Large) | Metal: 1.27 oz / 1.34 oz (36 g / 38 g); Perloid: 1.06 oz / 1.09 oz (30 g / 31 g); Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) |
| Product Weight | 0.79 lb |
| Post Material | Brass |
| Included Hardware | 6 threaded bushings, 6 flanged washers, 6 mounting screws (M2.2 x 9.5) |


















