Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine offers precision engineering and tuning comfort with an advanced 1:18 gear ratio. As the modern evolution of the classic closed tuning machine, it incorporates precision CNC-machined components and surface finishes that deliver velvet-smooth, reliable, and wear-free operation.
Equipped with high-grade brass string posts precisely fitted into the housing, the M6 135 ensures maximum tuning stability. The specialized stepped flanged washer centers the string post securely without requiring a stepped peghead bore, eliminating tilting forces and reducing mechanical stress on mounting hardware.
Permanently lubricated with Schaller special grease, each enclosed unit provides completely maintenance-free performance. Designed to match the exact mounting dimensions of previous iterations, it serves as a seamless drop-in upgrade or replacement for modern and vintage instruments alike.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| Weight | 0.79 lb |
| Weight per Single Tuner with Button (Small/Large) | Metal (0.08 lb / 0.08 lb), Perloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) including banjo bolt |
| Button Bore Hole | 0.17 in diameter with 0.14 in drive flat |
| Mounting Screws Included | M2.2 x 9.5 |
| Lubrication | Permanently lubricated with Schaller special grease |
