Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine delivers legendary performance and unmatched tuning precision with its advanced 1:18 gear ratio. Designed to set the benchmark for closed guitar tuners, every component is CNC-machined to exacting tolerances and treated with a high-grade surface finish for smooth, reliable, and sensitive adjustments.
Equipped with high-grade brass string posts engineered for wear-free durability, this tuning machine features the innovative M6 stepped flanged washer. The 0.39 in (10 mm) diameter washer reliably centers the string post through the banjo bolt without requiring a stepped peghead bore, eliminating tilting torque and minimizing stress on the post and mounting hardware.
Featuring permanent internal lubrication with proprietary Schaller grease, this tuner provides completely maintenance-free operation and exceptional tuning stability. Its precise dual-pin design ensures secure mounting, offering a refined upgrade for electric and acoustic guitars requiring professional-grade hardware.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| SKU | 10030271.04.55 |
| Gear Ratio | 1:18 |
| Product Weight | 0.13 lb |
| Pin Spacing (Center to Center) | 0.39 in (10 mm) |
| Pin to Center of Post Distance | 0.31 in (8 mm) |
| Flanged Washer Diameter | 0.39 in (10 mm) |
| Button Bore Hole | 0.17 in (4.2 mm) diameter with 0.14 in (3.6 mm) drive flat |
| Post Material | Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |




















