3-pronged parts retriever

Three metal wires protrude from the other end, each sprung to bend outwards, away from the tube's axis, but with their tips bent inwards to form teeth.

The push-button drives the wires down the tube, where their natural springiness causes them to spread further outwards, opening the teeth.

When the button is released, an internal spring withdraws the wires which, constrained by the tube, are forced together, closing the teeth.

The outer shell is usually plastic, although higher end retrievers can have metal casing and reinforced inner material.

Other uses include paper removal, device handling, and item maneuvering.