Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine delivers outstanding precision and smooth tuning comfort with an upgraded 1:18 gear ratio. Continuing the legacy established by the original sealed M6 in 1966, this model features refined CNC machining and premium brass posts fitted directly into the housing for maximum tuning stability and wear resistance.
Equipped with Schaller's innovative stepped flanged washer, this tuning machine simplifies installation by reliably centering the string post without requiring a stepped headstock hole. This mechanism eliminates tilting torque and reduces direct mechanical pressure on both the string axis and the rear mounting hardware.
Permanently lubricated with Schaller special grease for maintenance-free operation, the M6 Pin utilizes a self-locking drive and two-pin mounting layout. The precise 0.39-inch (10 mm) pin spacing ensures secure fitment across compatible electric and acoustic guitar headstocks.
| Brand | Schaller |
| Model Number | 1003 |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| String Post Material | High-Grade Brass |
| Pin Spacing (Center to Center) | 0.39 in (10 mm) |
| Pin to Post Center Distance | 0.31 in (8 mm) |
| Flanged Washer Diameter | 0.39 in (10 mm) |
| Button Bore Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight per Single Tuner with Button | Metal: 1.27–1.34 oz (36–38 g), Perloid: 1.06–1.09 oz (30–31 g), Ebony: 1.06–1.09 oz (30–31 g) |
| Product Weight | 0.13 lb |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
