Insert the tool tip around the pin/socket contact and push forward.While putting a light forward pressure on the attached conductor (to help unseat the contact from the insulator), insert the tool tip around the pin /socket contact and push backwards. (Rotating the tool slightly while gently pushing, helps to close the retention clip tangs).
The outer sleeve (which is spring loaded) closes the tines of the pin/socket retention clip and releases the pin/socket.
The inner sleeve now acts to push the contact in a backwards direction and ejects the pin/socket through the back of the contact housing.