Unknown Tool

Out of nowhere, I suddenly bump into a tool I really don’t know about. The spring plunger. What exactly are spring plungers? I was told that tool engineers often put spring plungers in their tools to save time and labor. This is possible because spring plungers guarantee controlled spring tension when they’re used in dies, jigs and fixtures. After reading about this tool which is foreign to me, I still can’t imagine how it works.

In my entire life, I don’t recall seeing one. I’ve been around people who uses building tools, heavy tools and mechanical tools. Heck, my dad in his everyday life uses a lot of different tools because he’s a mechanic but I really can’t remember hearing about or seeing a spring plunger. First thing that comes into my mind when I hear spring plunger is the bathroom plunger. Some kind of special sophisticated bathroom plunger…