Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine delivers outstanding precision and smooth operation with an improved 1:18 gear ratio. Each component is CNC-machined and surface-treated, featuring a self-locking drive mechanism that guarantees consistent, highly responsive, and reliable tuning stability.
Equipped with premium brass string posts precision-fitted into the housing, this closed machine head ensures maximum durability and wear resistance. The innovative stepped M6 flanged washer reliably centers the string post without requiring a stepped peghead bore, eliminating tilting torque and reducing pressure on mounting screws.
Permanently lubricated with Schaller special grease for maintenance-free performance, the M6 Pin features a 0.39 in center-to-center pin distance. It comes complete with threaded bushings, step washers, and mounting screws for straightforward installation on compatible instruments.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Pin Spacing (Center to Center) | 0.39 in |
| Pin to Post Center Distance | 0.31 in |
| Button Bore Hole Diameter | 0.17 in (drive surface 0.14 in) |
| Weight | 0.79 lb |
| Included Hardware | 6 threaded bushings, 6 step washers, 6 mounting screws (M2.2 x 9.5) |




















