Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine sets a benchmark for enclosed tuners, featuring an upgraded 1:18 gear ratio that delivers exceptional precision, velvety smooth action, and outstanding tuning stability. Every component is CNC-machined and finished to tight tolerances, with high-grade brass string posts engineered directly into the housing to ensure frictionless, long-lasting performance and zero play.
Installation is streamlined and secure thanks to the innovative stepped M6 flanged collar with a 0.39 in (10 mm) base. This unique design eliminates the need for stepped headstock drilling by self-centering the string post through the banjo bolt, effectively absorbing string tension and preventing tipping torque on both the post and rear mounting pins.
Engineered for maintenance-free operation, all enclosed housings are permanently lubricated with proprietary Schaller special grease. Designed as a direct two-pin replacement with standard 0.39 in (10 mm) pin spacing and a 0.31 in (8 mm) post-to-pin offset, this versatile system offers robust reliability and professional-grade performance for discerning players.
| Brand | Schaller |
| Model | 1003 |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| String Post Material | Brass |
| Collar Diameter | 0.39 in |
| Pin Spacing | 0.39 in |
| Pin-to-Post Center Distance | 0.31 in |
| Button Hole Diameter | 0.17 in (with 0.14 in drive flat) |
| Weight | 0.79 lb |
| Lubrication | Schaller special grease (permanently lubricated) |
| Product Type | Guitar Tuning Machine |




















