Indexing plungers are commonly used to position and lock parts in place. They are detent devices that, as the name suggests, are designed for use in indexing bores.they are available in different types.

Flange vs Non-Flange

Some indexing plungers feature a flange. The flange consists of a protruding piece of material around the body. You can use them for same positioning and locking applications as other indexing plungers.

Other indexing plungers don't feature a flange. Instead, they consist of entirely of a body, which is typically affixed with a knob or lever at the top.

Position

You should consider the supported position when choosing indexing plungers. Some indexing plungers are designed for use with indexing applications that require a fixed position. Other indexing plungers are designed for use with indexing applications that require a retracted position.

Lever vs Knob

As previously mentioned, most indexing plungers feature either a lever or knob. You'll need to pull the lever or turn the knob to lock to retract the spring-loaded pin.

Both lever- and knob-style indexing plungers work in the same way. They simply use different methods to release the spring-loaded pin.