Before revision: 220x220px|90º miter joint (pieces ready to be joined) 220px|Miter joint of two pipes A miter joint (mitre in British 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 miter joint (pieces ready to be joined) 220px|Miter joint of two pipes A 'mitre joint 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.