Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine represents precision engineering and advanced functionality for musicians seeking supreme tuning stability. Featuring an optimized 1:18 gear ratio, it provides an ultra-smooth, velvety tuning experience with exceptional control. CNC-machined components and high-grade brass string posts ensure virtually wear-free operation and enduring reliability.
Equipped with Schaller's innovative stepped flanged washer, this tuning machine enables effortless installation by accurately centering the post without requiring stepped headstock peg holes. This design effectively eliminates tilting torque while relieving mechanical stress from both the post and the rear mounting screw. Sealed housings come permanently lubricated with Schaller special grease for completely maintenance-free performance.
Designed with identical mounting dimensions to its legacy predecessor, the M6 90 serves as a direct, modification-free replacement. Built for high performance and versatile configurations, it accommodates solid and slotted headstocks with standard, Locking, or TopLocking setups to maintain absolute pitch accuracy across all playing styles.
| Brand | Schaller |
| Model Number | 1005 |
| Product Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Housing Type | Enclosed / Sealed |
| Post Material | High-Grade Brass |
| Lubrication | Schaller Special Grease (Maintenance-Free) |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Single Tuner Weight (Small/Large Button) | Metal (0.08 lb / 0.08 lb), Perloid (0.07 lb / 0.07 lb), Ebony (0.07 lb / 0.07 lb) including banjo bolt |
| Product Weight | 0.79 lb |




















