Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine offers precision engineering and tuning comfort with an improved 1:18 gear ratio. CNC-machined components with premium surface finishing and self-locking drive mechanisms provide smooth, stable, and wear-free tuning performance.
Featuring high-grade brass posts precision-fitted into the housing, this enclosed tuner delivers maximum tuning stability. The stepped M6 flanged washer reliably centers the string post through the hollow screw, preventing tilting torque and eliminating the need for a stepped headstock bore.
Permanently lubricated with Schaller special grease for maintenance-free operation, the M6 135 shares identical mounting dimensions with its predecessor model, allowing direct drop-in replacement without instrument modifications.
| Brand | Schaller |
| Model | M6 135 |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | High-Grade Brass |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight per Single Tuner with Button (Small/Large) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw |
| Overall Product Weight | 0.79 lb |
| Mounting Screws Included | M2.2 x 9.5 mm |
| Lubrication | Maintenance-Free Schaller Special Grease |
