Schaller M6 135 Guitar Tuning Machines
The Schaller M6 135 series sets the industry standard for enclosed guitar tuning machines, engineered for high precision and superior tuning stability. Featuring an advanced 1:18 gear ratio, these CNC-machined tuners deliver smooth, delicate, and reliable tuning response. High-grade brass string posts fit precisely into the housing to eliminate mechanical play and prevent wear over years of active use.
An innovative stepped M6 flanged washer ensures straightforward installation and solid centering of the post via the threaded bushing, eliminating tilting torque and removing pressure from both the post and the rear mounting screw. The internal mechanism features a self-locking drive and is permanently lubricated with Schaller special grease, making each unit completely maintenance-free.
Designed with identical mounting dimensions to its predecessor, the M6 135 allows direct replacement without headstock modifications. Premium construction and fine surface finishing make these tuners an ideal upgrade for professional guitars requiring flawless performance.
| Gear Ratio | 1:18 |
| Weight | 0.79 lb |
| Button Borehole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| Individual Tuner Weight (Small/Large Button) | Metal: 1.27 oz / 1.34 oz (36 g / 38 g); Perloid: 1.06 oz / 1.09 oz (30 g / 31 g); Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) |
| Brand | Schaller |
| Series | M6 Series |
| Housing Type | Enclosed |
| String Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
