Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin tuning machine sets the standard for closed-type guitar tuners with an advanced 1:18 gear ratio for precise and smooth tuning stability. All components are CNC-machined with high precision, surface-finished, and utilize a self-locking drive to provide consistent, backlash-free performance.
Equipped with premium brass string posts carefully fitted into the housing, these tuners deliver maximum tuning stability and wear-free operation. The innovative stepped M6 flanged washer ensures straightforward installation and lasting axis centering without requiring a stepped headstock drill hole.
Engineered for permanent reliability, all enclosed tuning mechanisms are lubricated with Schaller special grease for completely maintenance-free operation. The dual-pin design provides secure mounting stability across compatible guitar headstocks.
| Brand | Schaller |
| Model | 1003 |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Weight per Single Tuner with Button (Small/Large) | Metal (1.3 oz / 1.3 oz), Perloid (1.1 oz / 1.1 oz), Ebony (1.1 oz / 1.1 oz) including hollow screw |
| Button Hole Drill Diameter | 0.17 in (0.14 in drive flat) |
| Pin Spacing (Center to Center) | 0.39 in |
| Pin to Post Center Distance | 0.31 in |
| Washer Step Diameter | 0.39 in |
| Weight | 0.8 lb |


















