Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers exceptional tuning accuracy and smooth operation with an advanced 1:18 gear ratio. Designed as an evolution of the iconic closed tuner first introduced in 1966, it features high-precision CNC-machined components and premium brass posts fitted seamlessly into the housing for maximum stability and wear-free longevity.
Equipped with an innovative stepped M6 flanged washer, this tuning machine centers the string post securely via the banjo bolt and eliminates the need for stepped headstock drilling. This smart design distributes mechanical pressure evenly away from both the post and the rear mounting screw to ensure reliable, tilt-free performance.
Each enclosed tuner is permanently lubricated with Schaller special grease for completely maintenance-free functionality. With identical mounting dimensions to its classic predecessor, the M6 135 offers a direct drop-in replacement for effortless guitar upgrades and modifications.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 135 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Weight | 0.13 lb |
| String Post Material | High-Grade Brass |
| Manufacturing Process | Precision CNC-Machined |
| Lubrication | Schaller Special Grease (Permanently Lubricated, Maintenance-Free) |
| Washer Type | Stepped M6 Flanged Washer (0.39 in / 10 mm Diameter) |
| Mounting Screw Size | M2.2 x 9.5 |
| Button Bore Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) Drive Flat |
| SKU | 10020171.02.36 |
