With Nut Steel Grip Indexing Plungers. Grip is held in a notch in the fully retracted position. In this position the locking pin does not project from the body at all.

• Spring-loaded pin used to lock a part into a specific position.
• To use it, pull the handle or knob, which retracts the pin, allowing the part to be moved freely. When released the pin springs back into a hole, securing the part in its new position.