Glossary A-CC-CD-EF-GG-II-MN-PP-SS-SS-TT-VW Split gate a gate of castings having the sprue axis or plunger axis in the die parting. Sprue metal that fills the conical passage (sprue hole) that connects the nozzle or cold chamber with runners. (Most cold chamber machines form a slug and have no sprue.) Sprue pin a tapered pin with rounded end projecting into a sprue hold and acting as a core to keep the casting in the ejector portion of the die. Stability, dimensional ability (of a die casting) to remain unchanged in size or shape while aging. Toggle linkage employed to mechanically multiply pressure when locking the dies of a casting machine.