Owing to its shape, the lifting ring of the Stainless Steel-Indexing plungers GN 413 can be used both as a screw-in assist during assembly or as indexing lock (Type C / Type CK).
Indexing plungers with rest position are used when the indexing pin is temporarily not allowed to protrude. After the pin is pulled in, turn the pull ring by 90°. The ring is held in position by an indexing notch.