Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine delivers outstanding precision and velvet-smooth tuning performance with its refined 1:18 gear ratio. Designed as an evolution of the industry-standard closed tuner design established in 1966, it features CNC-machined components and high-grade brass string posts engineered for maximum tuning stability and wear resistance.
Equipped with Schaller's innovative stepped collar washer (0.39 in diameter), this tuner eliminates tipping torque and evenly distributes pressure across the post and rear fixing pin without requiring stepped headstock drilling. Permanently lubricated with Schaller special grease, the fully enclosed mechanism guarantees maintenance-free operation and smooth responsiveness.
Featuring a 2-pin rear mount with 0.39 in center-to-center pin spacing and an 0.31 in post-to-pin distance, the M6 Pin offers seamless replacement for earlier single-pin M6 models. The set includes premium mounting hardware and precision threaded bushings designed for stable, long-lasting performance on solid headstocks.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Post Material | High-Grade Brass |
| Collar Washer Diameter | 0.39 in (10 mm) |
| Pin-to-Pin Distance | 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) drive surface |
| Single Tuner Weight (Metal Buttons) | 0.08 lb (36 g) / 0.08 lb (38 g) |
| Single Tuner Weight (Perloid Buttons) | 0.07 lb (30 g) / 0.07 lb (31 g) |
| Single Tuner Weight (Ebony Buttons) | 0.07 lb (30 g) / 0.07 lb (31 g) |
| Total Weight | 0.79 lb |
| Included Hardware | 6 Threaded Bushings, 6 Stepped Collar Washers, 6 Mounting Screws (M2.2 x 9.5 mm) |
| Lubrication | Permanent Special Grease, Maintenance-Free |
