What is a machine head on guitar?

A machine head, also known as a tuning peg or tuning key, is a mechanical device used to adjust the tension of the strings on a guitar. It consists of a cylindrical housing, a worm gear, and a string post. The string is wound around the string post, and the worm gear is turned to adjust the tension of the string. Machine heads are typically mounted on the headstock of the guitar, and there are usually six of them, one for each string.

Machine heads come in a variety of sizes and shapes, and they can be made from a variety of materials, including metal, plastic, and wood. Some machine heads are also equipped with locking mechanisms, which help to keep the strings in place and prevent them from slipping.

The type of machine head that is used on a guitar can affect the sound and playability of the instrument. For example, heavier machine heads can add sustain to the guitar's sound, while lighter machine heads can make it easier to bend the strings.

Here are some of the different types of machine heads that are available:

* Open-gear machine heads: These machine heads have an exposed worm gear, which makes them easy to adjust. However, they can be more susceptible to wear and tear than other types of machine heads.

* Closed-gear machine heads: These machine heads have a covered worm gear, which helps to protect them from wear and tear. However, they can be more difficult to adjust than open-gear machine heads.

* Locking machine heads: These machine heads have a locking mechanism that helps to keep the strings in place and prevent them from slipping. This can make them a good choice for guitars that are used for heavy playing.

The choice of machine heads is ultimately a matter of personal preference. However, by understanding the different types of machine heads that are available, you can make an informed decision about which ones are right for your guitar.