Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin tuning machine delivers precise tuning comfort and stability with an optimized 1:18 gear ratio. Designed with CNC-machined components and premium brass string posts, this closed tuner provides smooth, wear-free performance and reliable self-locking action.
Featuring the innovative stepped M6 flanged collar, the tuner reliably centers the string post through the threaded bushing without requiring stepped headstock drilling. This design eliminates tilting moments and relieves mechanical pressure on both the string post and rear mounting screws.
All enclosed internal mechanisms are permanently lubricated with Schaller special grease for completely maintenance-free operation. The dual-pin base matches original M6 housing dimensions with a 0.39 in center-to-center pin spacing for straightforward installation and upgrading.
| Gear Ratio | 1:18 |
| Weight per Single Tuner (Small/Large Button) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including threaded bushing |
| Button Bore Hole | 0.17 in diameter with 0.14 in driving flat |
| Threaded Bushings | 6x |
| Flanged Washers | 6x |
| Mounting Screws | 6x M2.2 x 0.37 in |
| Locking Model (Staggered) | Includes 3x 0.77 in and 3x 0.83 in string posts |
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| String Post Material | Brass |
| Lubrication | Maintenance-free Schaller special grease |
| Pin Spacing | 0.39 in (center to center) |
