Schaller M6 Pin Guitar Tuning Machine
The Schaller M6 Pin guitar tuning machine features a refined 1:18 gear ratio for velvety smooth, highly precise tuning. Built upon the legendary closed-housing design established in 1966, this updated version incorporates state-of-the-art manufacturing improvements to deliver optimal tuning accuracy and long-term durability.
Each component is precision CNC-machined and surface-treated, featuring high-grade brass string posts engineered seamlessly into the housing for maximum stability and wear resistance. The innovative stepped M6 flanged washer reliably centers the string post through the hollow screw, eliminating tipping torque and relieving mechanical stress without requiring a stepped headstock bore.
Permanently lubricated with Schaller special grease, these tuners operate completely maintenance-free. Designed with two alignment pins spaced 0.39 in (10 mm) center-to-center and an 0.31 in (8 mm) offset from the post center, they provide rock-solid anchoring for modern electric and acoustic guitar headstocks.
| Brand | Schaller |
| Series | M6 Series |
| Product Type | Guitar Tuning Machine |
| Gear Ratio | 1:18 |
| Housing Type | Closed |
| Post Material | Brass |
| Pin Spacing (Center to Center) | 0.39 in (10 mm) |
| Pin to Post Center Distance | 0.31 in (8 mm) |
| Flanged Washer Diameter | 0.39 in (10 mm) |
| Button Bore Diameter | 0.17 in (4.2 mm) with 0.14 in (3.6 mm) drive flat |
| Weight per Single Tuner with Button (Small/Large) | Metal: 1.27 oz / 1.34 oz (36 g / 38 g), Perloid/Ebony: 1.06 oz / 1.09 oz (30 g / 31 g) |
| Product Weight | 0.13 lb (0.06 kg) |
| Lubrication | Permanently lubricated with Schaller special grease |
