Before revision: 220x220px|90º Mitre joint (pieces ready to be joined) 220px|Mitre joint of two pipes A mitre joint (often miter in American English) is a joint made by cutting each of two parts to be joined, across the main surface, usually at a 45° angle, to form a corner, usually to form a 90° angle , though it can comprise any angle greater than 0 degrees.
After revision: 220x220px|90º Mitre joint (pieces ready to be joined) 220px|Mitre joint of two pipes , though it can comprise any angle greater than 0 degrees.