Represents the chamfer dimension of 5 MMX 45, that is, 45 degree chamfer, and the right angle side is 5 mm
Introduction to chamfering:
Chamfering is a term in mechanical engineering. For example, when drilling a hole in a wooden board, the hole wall forms a 90-degree right angle with the board surface. Chamfering is to make a small plane with a general angle of 45 degrees on the edge of 90 degrees, so that the plane and the inner wall, or the board face form a 45-degree angle. The advantage of this is that it won't get stuck when stuffing things into the hole.