Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine delivers outstanding precision and smooth tuning comfort with an improved 1:18 gear ratio. Continuing the legacy of the original 1966 design, this closed tuner features CNC-machined components, high-grade brass string posts, and self-locking drive mechanics for ultimate tuning stability and wear resistance.
Equipped with an innovative stepped M6 flanged washer, the unit ensures straightforward mounting and centered axis alignment without requiring a stepped headstock bore. This specialized design eliminates tilting moments and relieves mechanical stress on both the string post and rear fastening pins.
Permanently lubricated with Schaller special grease for maintenance-free performance, the M6 Pin utilizes a two-pin rear mounting configuration with a 0.39-inch (10 mm) pin spacing and a 0.31-inch (8 mm) spacing from the pin line to the post center.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| 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) including banjo bolt |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving flat 0.14 in (3.6 mm) |
| Pin Spacing (Center to Center) | 0.39 in (10 mm) |
| Pin to Post Center Distance | 0.31 in (8 mm) |
| Post Material | High-Grade Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Included Items | 6 x Banjo Bolts, 6 x Flanged Washers, 6 x Mounting Screws (M2.2 x 9.5) |
| Product Weight | 0.79 lb |




















