Explanation

A universal surface gauge is a tool used to scribe a line parallel to a surface. It consists of a base plate with a scribe or pointer that can be adjusted to a specific height. The scribe is held in place by a clamp or snug, which keeps the scribe securely against the base plate and prevents it from moving during use. The scribe can be adjusted to different angles, depending on the surface being marked, and the base plate can be moved along the surface to mark a continuous line.