Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine sets a benchmark for closed-type tuners, engineered with an upgraded 1:18 gear ratio for exceptionally smooth, precise, and dependable tuning stability. All structural components are precision CNC-machined and surface-treated, featuring a self-locking drive and premium brass string posts fitted seamlessly into the housing for maximum wear resistance.
Featuring the innovative stepped M6 flanged washer with a 0.39 in (10 mm) base, this tuning machine automatically centers the string post through the banjonut, eliminating the need for stepped headstock drilling. This smart design removes tilting torque and relieves mechanical stress from both the post and the rear mounting screw.
Built with permanently lubricated Schaller special grease for complete maintenance-free operation, the M6 135 shares identical mounting dimensions with its predecessor model, allowing effortless drop-in replacement on standard headstocks without modification.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| 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 banjonut |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Product Weight | 0.13 lb |
| Post Material | High-Grade Brass |
| Lubrication | Schaller Special Grease (Permanently Lubricated) |
