Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine delivers outstanding tuning stability and smooth, precise performance with an upgraded 1:18 gear ratio. CNC-machined components with a self-locking drive and premium brass string posts ensure consistent, sensitive adjustment with long-term wear resistance.
Equipped with Schaller's innovative stepped collar washer (10 mm / 0.39 in diameter), this tuner eliminates tilting torque and centers the string post securely through the banjo bolt without requiring a stepped headstock bore. All enclosed tuners are permanently lubricated with Schaller special grease for entirely maintenance-free operation.
Featuring a dual-pin configuration with a 10 mm (0.39 in) pin spacing and an 8 mm (0.31 in) pin-to-post center distance, these tuners match the housing dimensions of predecessor models for seamless upgrades and reliable performance.
| Brand | Schaller |
| Model | 1003 |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | High-Grade Brass |
| Collar Washer Diameter | 0.39 in (10 mm) |
| Pin Spacing (Center to Center) | 0.39 in (10 mm) |
| Pin to Post Center Distance | 0.31 in (8 mm) |
| Button Bore Hole Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) flat |
| Item Weight | 0.79 lb |
| Single Tuner Weight with Button (Metal) | 0.08 lb / 0.08 lb (36 g / 38 g) |
| Single Tuner Weight with Button (Pearloid/Ebony) | 0.07 lb / 0.07 lb (30 g / 31 g) |
| Lubrication | Permanently lubricated with Schaller special grease |




















