Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine sets an industry benchmark for precision and tuning stability. Engineered with a refined 1:18 gear ratio, it provides exceptionally smooth, sensitive, and accurate tuning performance. Every component is CNC-machined to exacting tolerances and permanently lubricated with Schaller special grease for completely maintenance-free operation.
Crafted with premium high-grade brass string posts, this enclosed tuner fits precisely into the housing to eliminate wear and optimize tone transfer. The innovative stepped M6 flanged washer centers the string post securely through the hollow screw, eliminating tilting torque and removing the necessity of a stepped peghead bore for clean, straightforward mounting.
Designed with a modern two-pin rear mounting configuration, it maintains standard casing dimensions with a 0.4 in pin-to-pin center spacing. Whether upgrading an existing instrument or outfitting a custom build, the M6 delivers legendary durability, rock-solid pitch retention, and reliable performance.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Lubrication | Maintenance-free grease |
| Pin-to-Pin Spacing (Center to Center) | 0.4 in |
| Pin to Center of Post Distance | 0.3 in |
| Stepped Washer Diameter | 0.4 in |
| Button Bore Diameter | 0.17 in (with 0.14 in drive flat) |
| Item Weight | 0.13 lb |


















