What are hand retractable plungers?

An hand retractable plunger is a index plunger of which the nose can be tretracted by hand. Hand retractable plungers were mainly developed to resolve positioning issues of moveable components. Due to it's design the hand retractable plunger will help you locating the correct position of your moveable component. By pulling the handle of the hand retractable plunger, the nose is retracted, releasing your component from its position. When moving your component around, the nose of the hand retractable plunger will shoot out in the next available location, thus indexing the mount position. The hand retractable plunger will apply a positive locking to your application, by securing your component into place. The hand operated plunger can come with a wide variety of head styles, but the index plunger with knob head is the most common hand retractable plunger. Vlier - hand retractable plunger