Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 sets the standard for closed guitar tuning machines with an improved 1:18 gear ratio for velvety smooth and precise tuning. High-precision CNC-machined components and premium brass posts ensure maximum tuning stability and long-lasting performance.
Featuring the innovative stepped M6 flanged washer, this tuner allows effortless installation and solid centering without requiring a stepped headstock hole. The design eliminates tilting torque and protects both the string post and rear mounting screw from unnecessary stress.
All enclosed units are permanently lubricated with Schaller special grease for completely maintenance-free operation. Identical footprint dimensions to previous models allow seamless, drop-in replacement without instrument modifications.
| Brand | Schaller |
| Model Number | 1005 |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Post Material | Brass |
| 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 banjo bolt |
| Button Bore Hole | 0.17 in diameter with 0.14 in driving flat |
| Product Weight | 0.79 lb |
| Lubrication | Permanently lubricated with special grease, maintenance-free |
