Schaller M6 135 Guitar Tuning Machine
The Schaller M6 135 guitar tuning machine delivers exceptional tuning accuracy and velvet-smooth operation with its refined 1:18 gear ratio. As an evolution of the legendary sealed tuner standard introduced in 1966, this model incorporates precision CNC-machined components and high-grade brass string posts engineered for maximum stability and wear-free performance.
Featuring the innovative stepped M6 flanged washer with a 0.39-inch diameter base, this tuner reliably centers the string post via the banjo bolt and eliminates the need for stepped headstock drilling. This design absorbs lateral torque and removes mechanical stress from both the post and rear mounting screws to protect your instrument and hardware.
Equipped with permanently lubricated Schaller special grease for completely maintenance-free performance, the M6 135 shares identical mounting dimensions with its predecessor model for direct, modification-free retrofitting.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Model | M6 135 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Weight with Button (Per Single Tuner) | Metal (1.27 oz / 1.34 oz), Pearloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including hollow screw |
| Button Bore Hole | 0.17 in diameter with 0.14 in driving surface |
| Product Weight | 0.79 lb |
| String Post Material | Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Included Hardware | 6 hollow screws, 6 stepped flanged washers, 6 mounting screws (M2.2 x 9.5) |
