Gotoh SD91-MG-05M-NI.arr=L6 Machine Head with Lock, Vintage

Set of premium quality from Japan. The set is complete; all necessary accessories for assembly are included in the package.

Drawings of dimensions and instructions in English can be found in the Download Files section.

Luxurious set of tuning mechanics from the Gotoh SG91 series in the L6 configuration. The internal mechanics are essentially the same as the SG90 series, but the baseplate is smaller because it is designed for a single-row configuration.

Gotoh tuning machines, Vintage reproduction. An excellent choice for a Custom guitar. These tuning machines are also a direct replacement for many PRS guitar models and older Gibson guitars, such as Les Paul and SG. The headstock hole should have a diameter of 8.5 to 8.8mm.

They can also be directly installed on newer Gibson and Epiphone guitars. If these have a larger hole (usually 10-10.5mm), you need to add adapter bushings.

Why do we want a lockable tuning machine?

The locking mechanism secures the string, eliminating the need to wind the string multiple times around the post. This saves time when stringing and, most importantly, reduces tuning problems.

How to use the Gotoh Magnum lockable tuning machine

In the video, you can see the use of the Magnum machine. In short, the string locks itself by turning the tuning machine. The Magnum mechanism first closes the string when turning, and then it can rotate the string post, i.e., tune the string. Conversely, when releasing the string tension, it unlocks. If the string is broken, this does not work, and you may need to use, for example, a coin. 

No, the coin doesn't have to be Japanese, as in the video, but if you want to be authentic...