Metal guitars usually have strings that vibrate and make noise when are hit with a body part, plectrum, or any other object by a human of some sort.
New To Town With A Made Up Name

In The Angel's City

Chasing Fortune And Fame
The Kovenant of Terror, Marshal of the Legion of Metal.

Quote by GID (Shamrock)
Br00tal, Terror Kovenant=metal's king

Quote by metalangelx
what are some that metal guitars do?

you need a real sentence for this to be a real question.
Now officially has too much gear to list

PM me if you want to know about my recording setup
Metal guitars go chugga chugga chugga chugga squeelie
The Pit. The Movie.