Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine sets an industry benchmark for closed tuners, featuring an upgraded 1:18 gear ratio for exceptionally precise and smooth tuning action. All components are CNC-machined to exact tolerances and finished to ensure flawless operation and long-lasting tuning stability.
Equipped with high-grade brass posts perfectly fitted to the housing, each unit utilizes Schaller special grease for permanent, maintenance-free lubrication. The self-locking drive design guarantees even, responsive, and reliable performance under standard string tension.
An innovative stepped M6 flanged washer centers the string post securely through the banjo bolt without requiring a stepped peghead bore. This design eliminates tipping torque and reduces mechanical stress on both the post and the rear mounting fixture.
| Brand | Schaller |
| Model | 1003 |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Product Weight | 0.13 lb |
| Weight per Single Tuner with Button (Small / Large) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including banjo bolt |
| Button Borehole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Pin Spacing (Center to Center) | 0.39 in (10 mm) |
| Distance from Pins to Center of String Post | 0.31 in (8 mm) |
| M6 Flanged Washer Diameter | 0.39 in (10 mm) |
