Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine sets an industry benchmark for precision, tuning comfort, and long-term durability. Featuring an engineered 1:18 gear ratio, it delivers velvety smooth response alongside exceptionally fine tuning adjustments. High-grade brass string posts fit precisely into the CNC-machined housing to eliminate unwanted play, friction, and wear.
Equipped with Schaller's innovative stepped flanged washer, this system reliably self-centers the string post via the threaded bushing without requiring stepped headstock drilling. This smart mechanical upgrade eliminates tilt torque and absorbs pressure from both the tuner post and the rear mounting point. Each enclosed unit is lubricated for life with specialized grease, ensuring maintenance-free performance across years of playing.
Supplied with complete installation hardware including threaded bushings, stepped washers, and mounting screws, this pin-mount configuration drops seamlessly into instruments with matching 0.39 in (10 mm) center-to-center pin spacing. The dual-pin design matches the housing footprint of predecessor single-pin M6 models for straightforward upgrades and retrofits.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Pin Spacing (Center to Center) | 0.39 in (10 mm) |
| Pin to Post Center Distance | 0.31 in (8 mm) |
| Button Bore Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Included Hardware | 6 threaded bushings, 6 flanged washers, 6 mounting screws (M2.2 x 9.5) |
| Post Material | Brass |
| Lubrication | Permanent specialized grease, maintenance-free |
| Weight | 0.79 lb |
