Disclosed is a casting mold comprising at least two adjoining molds that enclose a hollow space, the cavity, which is accessible from the outside via at least one inlet duct and into which liquid casting material can be injected or pressed, and at least one vent opening that extends from the cavity to the outer surface of a mold, points approximately in the direction in which the hardened cast part is removed from the mold, and is closed by a pin-type breather. The face of the breather facing the cavity is perforated by small air holes which are permeable to air while retaining the liquid casting material and which are connected to the outer surface of the breather.